Style de citation APA (7e éd.)

(1984). The Key to Philippine forest conservation: The defense of the dipterocarps. Columbian Publishing Corporation.

Style de citation Chicago (17e éd.)

The Key to Philippine Forest Conservation: The Defense of the Dipterocarps. Manila: Columbian Publishing Corporation, 1984.

Style de citation MLA (9e éd.)

The Key to Philippine Forest Conservation: The Defense of the Dipterocarps. Columbian Publishing Corporation, 1984.