(2011). The Philippines recommends for duck egg production. PCARRD-DOST.
Chicago Style aipamenaThe Philippines Recommends for Duck Egg Production. Los Banos, Laguna: PCARRD-DOST, 2011.
MLA aipamenaThe Philippines Recommends for Duck Egg Production. PCARRD-DOST, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.