एपीए उद्धरण

Philippines, & Bureau of Agricultural Research. (1990). On-farm research manual: Pilot production programs. Quezon city, Philippines: Bureau of Agricultural research.

शिकागो स्टाइल उद्धरण

Philippines, और Bureau of Agricultural Research. On-farm Research Manual: Pilot Production Programs. Quezon city, Philippines: Bureau of Agricultural research, 1990.

एमएलए उद्धरण

Philippines, और Bureau of Agricultural Research. On-farm Research Manual: Pilot Production Programs. Quezon city, Philippines: Bureau of Agricultural research, 1990.