Παραπομπή APA

Saveland, R. N. (1976). Handbook of environmental education with international case studies. John Wiley.

Παραπομπή Chicago Style

Saveland, Robert N. Handbook of Environmental Education with International Case Studies. London: John Wiley, 1976.

Παραπομπή MLA

Saveland, Robert N. Handbook of Environmental Education with International Case Studies. John Wiley, 1976.