Dyfyniad APA

Philippines, & Bureau of Agricultural Research. (1991). On-farm research manual: The farming systems approach. Quezon City, Philippines: Bureau of agricultural research.

Dyfyniad Arddull Chicago

Philippines, và Bureau of Agricultural Research. On-farm Research Manual: The Farming Systems Approach. Quezon City, Philippines: Bureau of agricultural research, 1991.

Dyfyniad MLA

Philippines, và Bureau of Agricultural Research. On-farm Research Manual: The Farming Systems Approach. Quezon City, Philippines: Bureau of agricultural research, 1991.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.