De tellingen van de huiszwaluw in 1967

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Journal	Natura
Rights	CC BY 3.0 NL ("Naamsvermelding")
Organisation	Natuurvereniging KNNV
Citation APA APA Style APA-ALL Style AAA Style Cell Style Chicago Style Harvard Style IEEE Style MLA Style Nature Style Vancouver Style American-Institute-of-Physics Style Council-of-Science-Editors Style BibTex Format Endnote Format RIS Format CSL Format DOIs only Format	J. Philippona. (1968). De tellingen van de huiszwaluw in 1967. Natura, 65(4), 54–56.

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