Παραπομπή σε μορφή APA (7η εκδ.)

Bilsborrow, R. E., & DeLargy, P. F. Land use, migration and natural resource deterioration: The experience of Guatemala and the Sudan.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Bilsborrow, Richard E., και Pamela F. DeLargy. Land Use, Migration and Natural Resource Deterioration: The Experience of Guatemala and the Sudan.

Παραπομπή σε μορφή MLA (9th εκδ.)

Bilsborrow, Richard E., και Pamela F. DeLargy. Land Use, Migration and Natural Resource Deterioration: The Experience of Guatemala and the Sudan.