Gwinner, E. (1990). Bird Migration. Springer-Verlag.
Chicago Style (17th ed.) CitationGwinner, Eberhard. Bird Migration. New York: Springer-Verlag, 1990.
MLA (9th ed.) CitationGwinner, Eberhard. Bird Migration. Springer-Verlag, 1990.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.