Citazione APA

Philippines, & Bureau of Agricultural Research. (1990). On-farm research manual: Planning on-farm research. Quezon City, Philippines: Bureau of Agricultural research.

Stile di citazione Chicago

Philippines, e Bureau of Agricultural Research. On-farm Research Manual: Planning On-farm Research. Quezon City, Philippines: Bureau of Agricultural research, 1990.

Citazione MLA

Philippines, e Bureau of Agricultural Research. On-farm Research Manual: Planning On-farm Research. Quezon City, Philippines: Bureau of Agricultural research, 1990.

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