1. Echoes of bats and men
Author: Griffin
Library: Central Library and Documents Center of Tehran University (Tehran)
Subject: Sound - Waves,Echo,Orientation
Classification :
QP
469
.
G7
2. Echoes of bats and nien
Author:
Library: Tehran University, technical faculty libraries 1 (Tehran)
Subject: Sound-waves,Echo,Orientation
Classification :
QP
469
.
G7
3. Echoes of bats & men
Author: GRIFFIN,DONALD R
Library: Central Library of Amirkabir University of Technology (Tehran)
Subject: SOUND WAVES , ECHO , ORIENTATION
Classification :
QP
469
.
G7
