Cita APA (7a ed.)
Wortmann, C. S., & Kaizzi, C. (1999). Farmer participation research for improved soil management. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Wortmann, Charles S., y CK Kaizzi. Farmer Participation Research for Improved Soil Management. International Center for Tropical Agriculture, 1999.
Cita MLA (9a ed.)
Wortmann, Charles S., y CK Kaizzi. Farmer Participation Research for Improved Soil Management. International Center for Tropical Agriculture, 1999.
Precaución: Estas citas no son 100% exactas.