APA引文

Tanyag, E. G., & Affungol, A. P. (1986). Costs and returns in black pepper production, Batangas, 1985. Bureau of Agricultural Economics.

Chicago Style (17th ed.) Citation

Tanyag, Emeteria G., and Amparo P. Affungol. Costs and Returns in Black Pepper Production, Batangas, 1985. Quezon City: Bureau of Agricultural Economics, 1986.

MLA引文

Tanyag, Emeteria G., and Amparo P. Affungol. Costs and Returns in Black Pepper Production, Batangas, 1985. Bureau of Agricultural Economics, 1986.