Cita APA (7a ed.)
NULAND, D., & Schwartz, H. F. (1989). A visual description of the common bean plant four major growth periods.
Cita Chicago Style (17a ed.)
NULAND, D.S, y Howard F. Schwartz. A Visual Description of the Common Bean Plant Four Major Growth Periods. 1989.
Cita MLA (9a ed.)
NULAND, D.S, y Howard F. Schwartz. A Visual Description of the Common Bean Plant Four Major Growth Periods. 1989.
Precaución: Estas citas no son 100% exactas.