Cita APA

Berck, P., & Helfand, G. (1990). Reconciling the von Liebig and differentiable crop production functions. Wisconsin: American Agricultural Economics Association.

Citación estilo Chicago

Berck, Peter, and Gloria Helfand. Reconciling the Von Liebig and Differentiable Crop Production Functions. Wisconsin: American Agricultural Economics Association, 1990.

Cita MLA

Berck, Peter, and Gloria Helfand. Reconciling the Von Liebig and Differentiable Crop Production Functions. Wisconsin: American Agricultural Economics Association, 1990.