APA način citiranja

Widelitz, R. B., Veltmaat, J. M., Mayer, J. A., Foley, J., & Chuong, C. (2007). Mammary glands and feathers: Comparing two skin appendages which help define novel classes during vertebrate evolution. Semin Cell Dev Biol.

Čikaški stil citiranja

Widelitz, Randall B., Jacqueline M. Veltmaat, Julie Ann Mayer, John Foley, i Cheng-Ming Chuong. "Mammary Glands and Feathers: Comparing Two Skin Appendages Which Help Define Novel Classes During Vertebrate Evolution." Semin Cell Dev Biol 2007.

MLA način citiranja

Widelitz, Randall B., et al. "Mammary Glands and Feathers: Comparing Two Skin Appendages Which Help Define Novel Classes During Vertebrate Evolution." Semin Cell Dev Biol 2007.