1. ......................
Author: Chhatwal, G. R.
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Problems, exercises, etc ، Chemistry
Classification :
QD
42
.
C45
2. ......................
Author: Chhatwal, G. R.
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Problems, exercises, etc ، Chemistry
Classification :
QD
42
.
C44
3. Encyclopaedia dictionary of environment
Author: editors, G.R. Chhatwal, D.K. Pandey, K.K. Nanda
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Dictionaries ، Ecology
Classification :
QD
540
.
4
.
E53
1990
5. Encyclopaedia of environmental energy resources
Author: / edited by G. R. Chhatwal
Library: National Library and Archives of Islamic Republic of Iran (Tehran)
Subject: انرژی، منابع
12. Encyclopedia of scientific and technical terms
Author: editor: G.R. Chhatwal
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Dictionaries ، Science,Dictionaries ، Technology
Classification :
Q
121
.
E545
1989
14. Environmental Noise Pollution and Its Control
Author: / Editors : G. R. Chhatwal [et. al.]
Library: Library of Graduate Faculty of Environment of Tehran Univerdity (Tehran)
Subject: Noise pollution,Noise Control
Classification :
TD
892
.
E59
1992
15. Environmental Noise Pollution and its Control
Author: / Editor G.R. Chhatwal ...[et al]
Library: Central library and document university of Kurdistan (Kurdistan)
Subject: Noise Pollution
Classification :
TD892
.
E5
1989
16. Experiments in Chemistry; for Class XI
Author: / [by] G. R. Chhatwal, M. Katyal [and] S. K. Munjal
Library: Tehran University, technical faculty libraries 1 (Tehran)
Subject: Chemistrey-Experiments
Classification :
QD
43
.
C5
17. Experiments in chemistry, for class XI
Author: / [by] G. R. Chhatwal, M. Katyal [and] S. K. Munial,Chhatwal
Library: IBB LIBRARY (Tehran)
Subject: Chemistry -- Experiments
Classification :
QD
43
.
C55
18. Experiments in chemistry, for class XII
Author: / [by] G. R. Chhatwal, M. Katyal [and] S. P. Dudeja,Chhatwal
Library: IBB LIBRARY (Tehran)
Subject: Chemistry -- Experiments
Classification :
QD
43
.
C5
v
19. Textbook of biotechnology
Author: / G. R. Chhatwal
Library: Central library of medical university of Isfahan (Esfahan)
Subject: Biotechnology
Classification :
TP248
.
2
.
C4T4
1995
20. Textbook of biotechnology
Author: Chhatwal, G. R.
Library: (Semnan)
Subject: ، Biotechnology
Classification :
TP
248
.
3
.
C4T4
