Investing the earth.

Sonraí bibleagrafaíochta
Údair chorparáideacha:	Earth Science Curriculum Project, American Geological Institute
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	Boston Hougthon Mifflin c1967.
Ábhair:	Geology. Earth.