Gaya APA

Gwinn, R, P. (1990). The New Encyclopedia Britannica 19 : Knowledge In Depth (Cetakan Kesepuluh). Amerika: University of Chicago.

Gaya MLA

Gwinn, Robert, P. "The New Encyclopedia Britannica 19 : Knowledge In Depth". Cetakan Kesepuluh Amerika: University of Chicago, 1990. Text.