APA Alıntı

Philippines, & Bureau of Agricultural Research. (1990). On-farm research manual: Cropping systems research. Quezon city, Philippines: Bureau of agricultural research.

Chicago Stili Alıntı

Philippines, ve Bureau of Agricultural Research. On-farm Research Manual: Cropping Systems Research. Quezon city, Philippines: Bureau of agricultural research, 1990.

MLA Alıntı

Philippines, ve Bureau of Agricultural Research. On-farm Research Manual: Cropping Systems Research. Quezon city, Philippines: Bureau of agricultural research, 1990.