Earth science
Subtitle: Robert L. Heller ... [et al.] ; program review, William Harmer.
Contributors: Heller, Robert L. 1919-
Edition: Canadian SI metric ed. --
Series: Challanges to science
Publisher: McGraw-Hill Ryerson
Published: 1976
Place of publication: Toronto
Language: eng
Number of pages: 468
Subjects: Astronomy.; Earth sciences.
Notes: Includes index.

For use in schools.