Παραπομπή APA

E Duffey. (1974). Grassland ecology and wildlife management. Chapman and hall.

Παραπομπή Chicago Style

E Duffey. Grassland Ecology and Wildlife Management. Chapman and hall, 1974.

Παραπομπή MLA

E Duffey. Grassland Ecology and Wildlife Management. Chapman and hall, 1974.