Παραπομπή σε μορφή APA (7η εκδ.)

Smith, D. S., & Hellmund, P. C. (1993). Ecology of greenways: Design and function of linear conservation areas. University of Minnesota.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Smith, Daniel S., και Paul Cawood Hellmund. Ecology of Greenways: Design and Function of Linear Conservation Areas. Minneapolis; London: University of Minnesota, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

Smith, Daniel S., και Paul Cawood Hellmund. Ecology of Greenways: Design and Function of Linear Conservation Areas. University of Minnesota, 1993.