Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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