Sayaboc, L. (1978). Comparative input, output and financial data for cotton, corn, palay, mongo, Virginia tobacco, native tobacco and Burley tobacco, Ilocos region, 1978. Special Studies Division, Planning Service, Ministry of Agriculture.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Sayaboc, L.S. Comparative Input, Output and Financial Data for Cotton, Corn, Palay, Mongo, Virginia Tobacco, Native Tobacco and Burley Tobacco, Ilocos Region, 1978. Quezon City: Special Studies Division, Planning Service, Ministry of Agriculture, 1978.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Sayaboc, L.S. Comparative Input, Output and Financial Data for Cotton, Corn, Palay, Mongo, Virginia Tobacco, Native Tobacco and Burley Tobacco, Ilocos Region, 1978. Special Studies Division, Planning Service, Ministry of Agriculture, 1978.