Gaya APA

Feigl, F. (New York : Elsevier). Spot tests in organic analysis . New York : Elsevier Publishing: New York : Elsevier Publishing co, 1956.

Gaya MLA

Feigl, Fritz. "Spot tests in organic analysis". New York : Elsevier Publishing: New York : Elsevier Publishing co, 1956, New York : Elsevier. Text.