Cita APA (7a ed.)
Lawson, T., & Kang, B. (1990). Yield of maize and cowpea in an alley cropping system in relation to available light. Elsevier.
Cita Chicago Style (17a ed.)
Lawson, T.L, y B.T Kang. Yield of Maize and Cowpea in an Alley Cropping System in Relation to Available Light. Elsevier, 1990.
Cita MLA (9a ed.)
Lawson, T.L, y B.T Kang. Yield of Maize and Cowpea in an Alley Cropping System in Relation to Available Light. Elsevier, 1990.
Precaución: Estas citas no son 100% exactas.