Gaya APA
Swanson, C, P., Bates, M. (1964).
The land and wildlife of south america .
New York:
New York: Time-Life Books; 1964.
Gaya MLA
Swanson, Carl, P.., Bates, Marston.
"The land and wildlife of south america".
New York:
New York: Time-Life Books; 1964,
1964.
Text.