Παραπομπή σε μορφή APA (7η εκδ.)
IWRB, Joint Nature Conservation Committee (JNCC) (Great Britain), Ornis Consult, Denmark. Ministry of the Environment. National Environmental Research Institute, Bertelsen J, Cracknell G, & Komdeur J. (1992). Manual for aeroplane and ship surveys of waterfowl and seabirds. Denmark. Ministry of the Environment. National Environmental Research Institute.
Παραπομπή σε μορφή Chicago (17η εκδ.)
IWRB, Joint Nature Conservation Committee (JNCC) (Great Britain), Ornis Consult, Denmark. Ministry of the Environment. National Environmental Research Institute, Bertelsen J, Cracknell G, και Komdeur J. Manual for Aeroplane and Ship Surveys of Waterfowl and Seabirds. Denmark. Ministry of the Environment. National Environmental Research Institute, 1992.
Παραπομπή σε μορφή MLA (9th εκδ.)
IWRB, et al. Manual for Aeroplane and Ship Surveys of Waterfowl and Seabirds. Denmark. Ministry of the Environment. National Environmental Research Institute, 1992.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.