Cita APA

Hansen, B. R., & Krause, M. A. (1989). Impact of agronomic and economic factors on farm profitability. Inglaterra: Elsevier.

Citación estilo Chicago

Hansen, B. R., and M. A. Krause. Impact of Agronomic and Economic Factors On Farm Profitability. Inglaterra: Elsevier, 1989.

Cita MLA

Hansen, B. R., and M. A. Krause. Impact of Agronomic and Economic Factors On Farm Profitability. Inglaterra: Elsevier, 1989.