Philippines. Bureau of Agricultural Research. (1990). On-farm research manual. Bureau of Agricultural Research, Department of Agriculture.
芝加哥风格引文Philippines. Bureau of Agricultural Research. On-farm Research Manual. Quezon City: Bureau of Agricultural Research, Department of Agriculture, 1990.
MLA引文Philippines. Bureau of Agricultural Research. On-farm Research Manual. Bureau of Agricultural Research, Department of Agriculture, 1990.
警告：这些引文格式不一定是100％准确.