Cita APA

Perkins, H. F. 1., & Ritchie, T. F. (1965). Soil associations of Georgia. Athens, Georgia Agricultural Experiment: College of Agriculture.

Citación estilo Chicago

Perkins, Henry Frank 1921-, y T. F. Ritchie. Soil Associations of Georgia. Athens, Georgia Agricultural Experiment: College of Agriculture, 1965.

Cita MLA

Perkins, Henry Frank 1921-, y T. F. Ritchie. Soil Associations of Georgia. Athens, Georgia Agricultural Experiment: College of Agriculture, 1965.