Citazione APA

Philippines, & Bureau of agricultural research. (1990). On-farm research manual: Feedback mechanism. Quezon city, Philippines: Bureau of agricultural research.

Stile di citazione Chicago

Philippines, e Bureau of agricultural research. On-farm Research Manual: Feedback Mechanism. Quezon city, Philippines: Bureau of agricultural research, 1990.

Citazione MLA

Philippines, e Bureau of agricultural research. On-farm Research Manual: Feedback Mechanism. Quezon city, Philippines: Bureau of agricultural research, 1990.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.