Παραπομπή σε μορφή APA (7η εκδ.)
Romanian Academy, RIZA (Institute for Inland Water Management and Waste Water Treatment), Romania. Ministry of Water, Forest and Environment Protection, & RIZA. (1998). Ecosystems of the Romanian Danube Delta biosphere reserve: Explanation to a map 1: 175.000. RIZA (Institure for Inland Water Management and Waste Water Treatment).
Παραπομπή σε μορφή Chicago (17η εκδ.)
Romanian Academy, RIZA (Institute for Inland Water Management and Waste Water Treatment), Forest and Environment Protection Romania. Ministry of Water, και RIZA. Ecosystems of the Romanian Danube Delta Biosphere Reserve: Explanation to a Map 1: 175.000. RIZA (Institure for Inland Water Management and Waste Water Treatment), 1998.
Παραπομπή σε μορφή MLA (9th εκδ.)
Romanian Academy, et al. Ecosystems of the Romanian Danube Delta Biosphere Reserve: Explanation to a Map 1: 175.000. RIZA (Institure for Inland Water Management and Waste Water Treatment), 1998.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.