APA-referens (7:e uppl.)

Opelanio, C. T., Cabebe, L., & Manto, J. (1976). Debt repayment capacity of palay farmers in Central Luzon. Special Studies Division, National Food and Agriculture Council, Dept. of Agriculture.

Chicago-referens (17:e uppl.)

Opelanio, C. T., L.R Cabebe, och J.M Manto. Debt Repayment Capacity of Palay Farmers in Central Luzon. Quezon City: Special Studies Division, National Food and Agriculture Council, Dept. of Agriculture, 1976.

MLA-referens (9:e uppl.)

Opelanio, C. T., et al. Debt Repayment Capacity of Palay Farmers in Central Luzon. Special Studies Division, National Food and Agriculture Council, Dept. of Agriculture, 1976.