Cita APA

Pierce, F. J., & Clay, D. (2007). GIS applications in agriculture. CRC Press.

Citación estilo Chicago

Pierce, Francis J., y David Clay. GIS Applications in Agriculture. Boca Raton: CRC Press, 2007.

Cita MLA

Pierce, Francis J., y David Clay. GIS Applications in Agriculture. CRC Press, 2007.