Cita APA (7a ed.)

Ruben, R., & Sáenz, F. Farmers, markets and contracts: Chain intragration of smallholder producers in Costa Rica.

Cita Chicago Style (17a ed.)

Ruben, Ruerd, y Fernando Sáenz. Farmers, Markets and Contracts: Chain Intragration of Smallholder Producers in Costa Rica.

Cita MLA (9a ed.)

Ruben, Ruerd, y Fernando Sáenz. Farmers, Markets and Contracts: Chain Intragration of Smallholder Producers in Costa Rica.

警告：這些引文格式不一定是100％准確.