This book discusses the various layers of the earth's surface and crust.
Maelezo ya Uchapishaji
- Mchapishaji: W.H. Freeman,
 - ISBN-10: 0716717433
 - Dewey Decimal: 550.
 - Maktaba ya ECHO: 550. PRE
 
This book discusses the various layers of the earth's surface and crust.