Loonen, M. J. J. E. (1997). Goose breeding ecology: Overcoming successive hurdles to raise goslings. Rijksuniversiteit te Groningen.
Čikaški stil citiranja (17. izdanje)Loonen, Martinus Johannes Joachim Ewald. Goose Breeding Ecology: Overcoming Successive Hurdles to Raise Goslings. [Groningen]: Rijksuniversiteit te Groningen, 1997.
MLA način citiranja (8. izdanje)Loonen, Martinus Johannes Joachim Ewald. Goose Breeding Ecology: Overcoming Successive Hurdles to Raise Goslings. Rijksuniversiteit te Groningen, 1997.
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