APA (7th ed.) Citation

Encyclopaedia Britannica Educational Corporation, Adler, M. J., Doren, C. V., & Ducas, G. (1969). The Negro in American History. Encyclopaedia Britannica Educational Corp.

Chicago Style (17th ed.) Citation

Encyclopaedia Britannica Educational Corporation, Mortimer Jerome Adler, Charles Van Doren, and George Ducas. The Negro in American History. [Chicago]: Encyclopaedia Britannica Educational Corp, 1969.

MLA (9th ed.) Citation

Encyclopaedia Britannica Educational Corporation, et al. The Negro in American History. Encyclopaedia Britannica Educational Corp, 1969.