Cita APA (7th ed.)

Valdellon, T. C., & Javier, E. V. (1981). The marketing operations of black pepper traders in Batangas. Information Section, Bureau of Agricultural Economics.

Cita Chicago (17th ed.)

Valdellon, Taciana C., i Editha V. Javier. The Marketing Operations of Black Pepper Traders in Batangas. Quezon City: Information Section, Bureau of Agricultural Economics, 1981.

Cita MLA (9th ed.)

Valdellon, Taciana C., i Editha V. Javier. The Marketing Operations of Black Pepper Traders in Batangas. Information Section, Bureau of Agricultural Economics, 1981.