Gaya APA

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

Gaya MLA

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