Villar, M. C. (1992). More research on rise by-products to boost farmers' income proposed / Magtanggol C. Villar. Manila Bulletin.
Chicago-referens (17:e uppl.)Villar, Magtanggol C. "More Research on Rise By-products to Boost Farmers' Income Proposed / Magtanggol C. Villar." Manila Bulletin 1992.
MLA-referens (9:e uppl.)Villar, Magtanggol C. "More Research on Rise By-products to Boost Farmers' Income Proposed / Magtanggol C. Villar." Manila Bulletin, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.