APA ציטוט

Data, E. S., Roa, J. R., & Tangonan, P. G. (1997). Sweetpotato food systems in Central Luzon, Philippines. UPWARD.

Chicago Style (17th ed.) Citation

Data, Emma S., Julieta R. Roa, and Priscila G. Tangonan. Sweetpotato Food Systems in Central Luzon, Philippines. Los Banos, Laguna: UPWARD, 1997.

ציטוט MLA

Data, Emma S., et al. Sweetpotato Food Systems in Central Luzon, Philippines. UPWARD, 1997.