Gaya APA

Leffler, P., Brent, J. (1990). Publc and academic history : a philosophy and paradigm . Malabar: Robert E. Krierge Publishing Company.

Gaya MLA

Leffler, Phyllis., Brent, Joseph. "Publc and academic history : a philosophy and paradigm". Malabar: Robert E. Krierge Publishing Company, 1990. Text.