Earth science curriculum project, American Geologist Institute.
Investigating the Earth. - New York : Houghton Millan, c 1972. - xiv, 593 p. : ill. ; 26 cm.
Includes index.
338 338
Earth sciences.
550 / E76i
Investigating the Earth. - New York : Houghton Millan, c 1972. - xiv, 593 p. : ill. ; 26 cm.
Includes index.
338 338
Earth sciences.
550 / E76i