APA

Conover H. F., Krould H. J. & Library of Congress. (1952). Introduction to Africa. Washington: Washington University Press.

Chicago

Conover Helen F, Krould Harry J and Library of Congress. 1952. Introduction to Africa. Washington: Washington University Press.

Harvard

Conover H. F., Krould H. J. and Library of Congress. (1952). Introduction to Africa. Washington: Washington University Press.

MLA

Conover Helen F, Krould Harry J and Library of Congress. Introduction to Africa. Washington: Washington University Press. 1952.