APA (7th ed.) Citation

Perry, M. (1971). Man's unfinished journey: A world history. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Perry, Marvin. Man's Unfinished Journey: A World History. Boston: Houghton Mifflin, 1971.

MLA (9th ed.) Citation

Perry, Marvin. Man's Unfinished Journey: A World History. Houghton Mifflin, 1971.

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