APA ציטוט

(1990). On-farm research manual. Quezon city, Philippines: Department of Agriculture, Bureau of Agricultural Research.

Trích dẫn kiểu Chicago

On-farm Research Manual. Quezon city, Philippines: Department of Agriculture, Bureau of Agricultural Research, 1990.

ציטוט MLA

On-farm Research Manual. Quezon city, Philippines: Department of Agriculture, Bureau of Agricultural Research, 1990.