APA aipamena

Denning, G. L. (1980). Rainfed cropping systems in Zamboanga Del Sur: A farm survey. Zamboanga Del Sur Development Project, Philippine-Australian Development Assistance Programme.

Chicago Style aipamena

Denning, Glenning L. Rainfed Cropping Systems in Zamboanga Del Sur: A Farm Survey. [Pagadian City]: Zamboanga Del Sur Development Project, Philippine-Australian Development Assistance Programme, 1980.

MLA aipamena

Denning, Glenning L. Rainfed Cropping Systems in Zamboanga Del Sur: A Farm Survey. Zamboanga Del Sur Development Project, Philippine-Australian Development Assistance Programme, 1980.