1. Math For Wastewater Treatment Operators, Grades 3 and 4.
Author: John Giorgi
Library: Center and Library of Islamic Studies in European Languages (Qom)
Subject: Engineering mathematics -- Formulae.,Sewage -- Purification -- Mathematics.,Sewage -- Purification -- Problems, exercises, etc.
Classification :
TD745
.
J646
2009


2. Math for wastewater treatment operators grades 1 and 2
Author: John Giorgi.
Library: Center and Library of Islamic Studies in European Languages (Qom)
Subject: Engineering mathematics, Formulae.,Sewage disposal plants-- Employees-- Certification.,Sewage-- Purification-- Mathematics.,Sewage-- Purification, Problems, exercises, etc.,Water-- Purification-- Mathematics.,Water-- Purification, Problems, exercises, etc.,Water treatment plants-- Employees-- Certification.

3. Math for wastewater treatment operators grades 1 and 2 :a guide to preparing for wastewater treatment operator certification exams
Author: Giorgi, John.
Library: Library of Razi Metallurgical Research Center (Tehran)
Subject: Purification Mathematics ، Sewage,Problems, exercises, etc ، Sewage - Purification,Employees Certification ، Sewage disposal plants,Purification Mathematics ، Water,Problems, exercises, etc ، Water - Purification,Employees Certification ، Water treatment plants,Formulae ، Engineering mathematics
Classification :
TD
745
.
G56
2009


4. Math for water treatment operators
Author: John Giorgi.
Library: Center and Library of Islamic Studies in European Languages (Qom)
Subject: Engineering mathematics, Formulae.,Sewage disposal plants-- Employees-- Certification.,Sewage-- Purification-- Mathematics.,Sewage-- Purification, Problems, exercises, etc.,Water-- Purification-- Mathematics.,Water-- Purification, Problems, exercises, etc.,Water treatment plants-- Employees-- Certification.

5. Math for water treatment operators :practice problems to prepare for water treatment operator certification exams
Author: Giorgi, John.
Library: Library of Razi Metallurgical Research Center (Tehran)
Subject: Purification Mathematics ، Water,Problems, exercises, etc ، Water - Purification,Employees Certification ، Water treatment plants,Purification Mathematics ، Sewage,Problems, exercises, etc ، Sewage - Purification,Employees Certification ، Sewage disposal plants,Formulae ، Engineering mathematics
Classification :
TD
433
.
G56
2007

