Investigating the earth : teacher`s manual /
Investigating the earth : teacher's manual /
American Geological Institute
- 3rd ed.
- Boston : Houghton Mifflin, 1978
- 557 p. : ill. ; 26 cm.
'Sponsored by the American Geological Institute and based on the orginal Earth Science Curriculum Project'
Earth sciences
'Sponsored by the American Geological Institute and based on the orginal Earth Science Curriculum Project'
Earth sciences
