Gaya APA
Gwinn, R, P. (1990).
The New Book Of Knowledge 14 : Knowledge In Depth (Cetakan Kesepuluh).
Amerika:
University of Chicago.
Gaya MLA
Gwinn, Robert, P.
"The New Book Of Knowledge 14 : Knowledge In Depth".
Cetakan Kesepuluh
Amerika:
University of Chicago,
1990.
Text.