APA (7th ed.) Citation
Loker, W., Carter, S. E., Jones, P. G., & Robison, D. (1993). Identification of areas of land degradation in the Peruvian Amazon using a geographic information system.
Chicago Style (17th ed.) Citation
Loker, WM, Simon E. Carter, Peter G. Jones, and DM Robison. Identification of Areas of Land Degradation in the Peruvian Amazon Using a Geographic Information System. 1993.
MLA (9th ed.) Citation
Loker, WM, et al. Identification of Areas of Land Degradation in the Peruvian Amazon Using a Geographic Information System. 1993.
Warning: These citations may not always be 100% accurate.