Cita APA (7a ed.)
Kruska, R. L., & Perry, B. D. (1980). Evaluation of grazing lands of Zimbabwe using AVHRR normalised difference vegetation index.
Cita Chicago Style (17a ed.)
Kruska, Russell L., y Brian D. Perry. Evaluation of Grazing Lands of Zimbabwe Using AVHRR Normalised Difference Vegetation Index. 1980.
Cita MLA (9a ed.)
Kruska, Russell L., y Brian D. Perry. Evaluation of Grazing Lands of Zimbabwe Using AVHRR Normalised Difference Vegetation Index. 1980.
Precaución: Estas citas no son 100% exactas.