APA način citiranja

Siefferman, L., & Hill, G. E. Structural and melanin coloration indicate parental effort and reproductive success in male Eastern bluebirds.

Čikaški stil citiranja

Siefferman, Lynn., i Geoffrey E. Hill. Structural and Melanin Coloration Indicate Parental Effort and Reproductive Success in Male Eastern Bluebirds.

MLA način citiranja

Siefferman, Lynn., i Geoffrey E. Hill. Structural and Melanin Coloration Indicate Parental Effort and Reproductive Success in Male Eastern Bluebirds.