Παραπομπή σε μορφή APA (7η εκδ.)
Intitute for European Environmental Policy (IEEP), International Conference on conserving Europe 's natural hesitage (1993 : Maastricht), Hungary. Ministry for Environment and Regional Policy, The Netherlands. Ministry of Agriculture. Nature Management and Fisheries, Graham & Trotman, & Bennett Graham. (1994). Conserving Europe 's natural heritage: Towards a european ecological network. Graham & Trotman.
Παραπομπή σε μορφή Chicago (17η εκδ.)
Intitute for European Environmental Policy (IEEP), International Conference on conserving Europe 's natural hesitage (1993 : Maastricht), Hungary. Ministry for Environment and Regional Policy, The Netherlands. Ministry of Agriculture. Nature Management and Fisheries, Graham & Trotman, και Bennett Graham. Conserving Europe 'S Natural Heritage: Towards a European Ecological Network. Graham & Trotman, 1994.
Παραπομπή σε μορφή MLA (9th εκδ.)
Intitute for European Environmental Policy (IEEP), et al. Conserving Europe 'S Natural Heritage: Towards a European Ecological Network. Graham & Trotman, 1994.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.