1. How the Earth works

Author:

Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)

Subject: Juvenile literature ، Earth,Experiments - Juvenile literature ، Earth,Juvenile literature ، Geophysics,Experiments - Juvenile literature ، Geophysics

Classification :
QB
631
.
4
.
F37
1992

2. How the Earth works

Author:

Library: Central Library and Documents Center of Tehran University (Tehran)

Subject: Earth -- Juvenile literature.,Earth -- Experiments -- Juvenile literature.,Geophysics- Juvenile literature,Geophysics -- Experiments -- Juvenile literature.

Classification :
QB
631
.
4
.
F37
1992

3. How the Earth works :

Author:

Library: Center and Library of Islamic Studies in European Languages (Qom)

Subject: Geophysics-- Experiments, Juvenile literature,Physical geology-- Experiments, Juvenile literature,Earth (Planet), Experiments, Juvenile literature, 0