Gaya APA

Feigl, F., Swanson, C, P. (1960). Spot tests in organic analysis . New York: New York: Elsiever; 1960.

Gaya MLA

Feigl, Fritz., Swanson, Carl, P.. "Spot tests in organic analysis". New York: New York: Elsiever; 1960, 1960. Text.