APA (7th ed.) Citation

Houghton Mifflin Company. (1979). The International geographic encyclopedia and atlas. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Houghton Mifflin Company. The International Geographic Encyclopedia and Atlas. Boston: Houghton Mifflin, 1979.

MLA (9th ed.) Citation

Houghton Mifflin Company. The International Geographic Encyclopedia and Atlas. Houghton Mifflin, 1979.

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