Cita APA

Hubbard, E. E., & Purcell, J. C. (1985). 1984 Georgia commercial apple tree survey. Athens, Georgia: Agricultural Experiment Stations University of Georgia.

Citación estilo Chicago

Hubbard, Eugene E., y Joseph C. Purcell. 1984 Georgia Commercial Apple Tree Survey. Athens, Georgia: Agricultural Experiment Stations University of Georgia, 1985.

Cita MLA

Hubbard, Eugene E., y Joseph C. Purcell. 1984 Georgia Commercial Apple Tree Survey. Athens, Georgia: Agricultural Experiment Stations University of Georgia, 1985.