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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)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.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)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.