Παραπομπή σε μορφή APA (7η εκδ.)
Poland. The Board of Polish national Parks & Poland. The Board of Polish national Parks. (1999). National Parks in Poland: Annual report 1998. Poland. The Board of Polish national Parks.
Παραπομπή σε μορφή Chicago (17η εκδ.)
Poland. The Board of Polish national Parks και Poland. The Board of Polish national Parks. National Parks in Poland: Annual Report 1998. Poland. The Board of Polish national Parks, 1999.
Παραπομπή σε μορφή MLA (9th εκδ.)
Poland. The Board of Polish national Parks και Poland. The Board of Polish national Parks. National Parks in Poland: Annual Report 1998. Poland. The Board of Polish national Parks, 1999.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.