Sayaboc, L. (1978). Production and marketing of palay seed: Ilocos Region. Special Studies Division, Dept. of Agriculture.
Chicago (17e ed.) BronvermeldingSayaboc, L.S. Production and Marketing of Palay Seed: Ilocos Region. Quezon City: Special Studies Division, Dept. of Agriculture, 1978.
MLA (9e ed.) BronvermeldingSayaboc, L.S. Production and Marketing of Palay Seed: Ilocos Region. Special Studies Division, Dept. of Agriculture, 1978.
Let op: Deze citaties zijn niet altijd 100% accuraat.