Cita APA

Justus, F. E., & Justus, F. E. (1992). Kentucky beef cow enterprises: 1990 costs and returns. [Lugar de publicación no identificado]: University of Kentucky College of Agriculture Cooperative Extension Service.

Citación estilo Chicago

Justus, Fred E., y Fred E. Justus. Kentucky Beef Cow Enterprises: 1990 Costs and Returns. [Lugar de publicación no identificado]: University of Kentucky College of Agriculture Cooperative Extension Service, 1992.

Cita MLA

Justus, Fred E., y Fred E. Justus. Kentucky Beef Cow Enterprises: 1990 Costs and Returns. [Lugar de publicación no identificado]: University of Kentucky College of Agriculture Cooperative Extension Service, 1992.