Cita APA (7a ed.)
Polson, R., & Shumway, C. (1990). Structure of south central agricultural production.
Cita Chicago Style (17a ed.)
Polson, R.A, y C.R Shumway. Structure of South Central Agricultural Production. 1990.
Cita MLA (9a ed.)
Polson, R.A, y C.R Shumway. Structure of South Central Agricultural Production. 1990.
Precaución: Estas citas no son 100% exactas.