APA ציטוט

Nartea, R. N., & Thompson, L. M. (1990). Basic soil fertility (5th ed.). UP Printery.

Chicago Style (17th ed.) Citation

Nartea, Roberto N., and Louis Milton Thompson. Basic Soil Fertility. 5th ed. Diliman,Quezon City,PHILS: UP Printery, 1990.

ציטוט MLA

Nartea, Roberto N., and Louis Milton Thompson. Basic Soil Fertility. 5th ed. UP Printery, 1990.