APA (7e ed.) Bronvermelding

Costales, A. (2004). Scale and access issues affecting smallholder hog producers in an expanding peri-urban market: Southern Luzon, Philippines. International Food Policy Research Institute.

Chicago (17e ed.) Bronvermelding

Costales, Achilles. Scale and Access Issues Affecting Smallholder Hog Producers in an Expanding Peri-urban Market: Southern Luzon, Philippines. Washington, D.C: International Food Policy Research Institute, 2004.

MLA (9e ed.) Bronvermelding

Costales, Achilles. Scale and Access Issues Affecting Smallholder Hog Producers in an Expanding Peri-urban Market: Southern Luzon, Philippines. International Food Policy Research Institute, 2004.