Παραπομπή σε μορφή APA (7η εκδ.)
Regional Environmental Center for Central and Eastern Europe, Deri Andrea, & Cooper G. (1993). Environmental education - An active approach. Regional Environmental Center for Central and Eastern Europe.
Παραπομπή σε μορφή Chicago (17η εκδ.)
Regional Environmental Center for Central and Eastern Europe, Deri Andrea, και Cooper G. Environmental Education - An Active Approach. Regional Environmental Center for Central and Eastern Europe, 1993.
Παραπομπή σε μορφή MLA (9th εκδ.)
Regional Environmental Center for Central and Eastern Europe, et al. Environmental Education - An Active Approach. Regional Environmental Center for Central and Eastern Europe, 1993.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.