APA (7th ed.) Citation

(1987). The boundaries of civilizations in space and time. Univ. Press of America.

Chicago Style (17th ed.) Citation

The Boundaries of Civilizations in Space and Time. Lanham u.a: Univ. Press of America, 1987.

MLA (9th ed.) Citation

The Boundaries of Civilizations in Space and Time. Univ. Press of America, 1987.

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