Björklund, M. (1988). Advertisement, conflicts, and mate choice in two passerine bird species. Distributor, Almqvist & Wiksell International.
Chicago-referens (17:e uppl.)Björklund, Mats. Advertisement, Conflicts, and Mate Choice in Two Passerine Bird Species. Stockholm, Sweden: Distributor, Almqvist & Wiksell International, 1988.
MLA-referens (8:e uppl.)Björklund, Mats. Advertisement, Conflicts, and Mate Choice in Two Passerine Bird Species. Distributor, Almqvist & Wiksell International, 1988.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.