Philippines, & Bureau of Agricultural Research. (1990). On-farm research manual: Planning on-farm research. Quezon City, Philippines: Bureau of Agricultural research.
シカゴスタイル引用形Philippines, , Bureau of Agricultural Research. On-farm Research Manual: Planning On-farm Research. Quezon City, Philippines: Bureau of Agricultural research, 1990.
MLA引用形式Philippines, , Bureau of Agricultural Research. On-farm Research Manual: Planning On-farm Research. Quezon City, Philippines: Bureau of Agricultural research, 1990.
警告: この引用は必ずしも正確ではありません.