Gaya APA
Timoshenko, V, P., Swerling, B, C. (1957).
The World's Sugar .
Stanford, California:
California.Stanford University Press.
Gaya MLA
Timoshenko, Vladimir, P.., Swerling, Boris, C..
"The World's Sugar".
Stanford, California:
California.Stanford University Press,
1957.
Koleksi Elektronik.