Παραπομπή σε μορφή APA (7η εκδ.)

Savitsky, B. G., & Lacher, T. E. (1998). GIS methodologies for developing conservation strategies: Tropical forest recovery and wildlife management in Costa Rica. Columbia University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Savitsky, Basil G., και Thomas E. Lacher. GIS Methodologies for Developing Conservation Strategies: Tropical Forest Recovery and Wildlife Management in Costa Rica. New York: Columbia University Press, 1998.

Παραπομπή σε μορφή MLA (9th εκδ.)

Savitsky, Basil G., και Thomas E. Lacher. GIS Methodologies for Developing Conservation Strategies: Tropical Forest Recovery and Wildlife Management in Costa Rica. Columbia University Press, 1998.