ISO690 Edition Citation

1979. Challenges to Science - Earth Science: Teacher ́s Edition. New York: Webster Division, McGraw-Hill Book Company.

APA (7th ed.) Citation

(1979). Challenges to Science - Earth Science: Teacher ́s Edition. Webster Division, McGraw-Hill Book Company.

Chicago Style (17th ed.) Citation

Challenges to Science - Earth Science: Teacher ́s Edition. New York: Webster Division, McGraw-Hill Book Company, 1979.

MLA (9th ed.) Citation

Challenges to Science - Earth Science: Teacher ́s Edition. Webster Division, McGraw-Hill Book Company, 1979.

Warning: These citations may not always be 100% accurate.