APA Style

Humphrey, Paul. (1997). Green Rainbows: Bekerja Sama . New York :: Quality Press.

Chicago Style

Humphrey, Paul. Green Rainbows: Bekerja Sama. New York :: Quality Press, 1997. Text.

MLA Style

Humphrey, Paul. Green Rainbows: Bekerja Sama. New York :: Quality Press, 1997. Text.

Turabian Style

Humphrey, Paul. Green Rainbows: Bekerja Sama. New York :: Quality Press, 1997. Print.