Philippines, & Bureau of Agricultural Research. (1990). On-farm research manual: Planning on-farm research. Quezon City, Philippines: Bureau of Agricultural research.
Citación estilo ChicagoPhilippines, y Bureau of Agricultural Research. On-farm Research Manual: Planning On-farm Research. Quezon City, Philippines: Bureau of Agricultural research, 1990.
Cita MLAPhilippines, y Bureau of Agricultural Research. On-farm Research Manual: Planning On-farm Research. Quezon City, Philippines: Bureau of Agricultural research, 1990.
Precaución: Estas citas no son 100% exactas.