APA (7th ed.) Citation

Portal, R. (1969). The Slavs: A cultural and historical survey of the Slavonic peoples ([1st U.S. ed.].). Harper & Row.

Chicago Style (17th ed.) Citation

Portal, Roger. The Slavs: A Cultural and Historical Survey of the Slavonic Peoples. [1st U.S. ed.]. New York: Harper & Row, 1969.

MLA (9th ed.) Citation

Portal, Roger. The Slavs: A Cultural and Historical Survey of the Slavonic Peoples. [1st U.S. ed.]. Harper & Row, 1969.