San Andres, R. R., & Illo, J. F. (1978). Beyond share tenancy: A socio-economic study of the effects of agrarian reform programs in the Bicol River Basin, Camarines Sur, 1974 and 1977. Social Survey Research Unit (Naga City), Institute of Philippine Culture, Ateneo de Manila University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)San Andres, Ricardo R., و Jean Frances Illo. Beyond Share Tenancy: A Socio-economic Study of the Effects of Agrarian Reform Programs in the Bicol River Basin, Camarines Sur, 1974 and 1977. Quezon City: Social Survey Research Unit (Naga City), Institute of Philippine Culture, Ateneo de Manila University, 1978.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)San Andres, Ricardo R., و Jean Frances Illo. Beyond Share Tenancy: A Socio-economic Study of the Effects of Agrarian Reform Programs in the Bicol River Basin, Camarines Sur, 1974 and 1977. Social Survey Research Unit (Naga City), Institute of Philippine Culture, Ateneo de Manila University, 1978.