Pigeon Breeding: Genetics At Work

"Great as are the differences between the breeds of the pigeon, I am fully convinced that the common opinion of naturalists is correct, namely, that all are descended from the rock-pigeon (Columba livia)."
—Excerpt from Charles Darwin, On the Origin of Species (1859)

APA format:

Genetic Science Learning Center. (2014, December 2) Pigeon Breeding: Genetics At Work. Retrieved August 24, 2016, from http://learn.genetics.utah.edu/content/pigeons/

CSE format:

Pigeon Breeding: Genetics At Work [Internet]. Salt Lake City (UT): Genetic Science Learning Center; 2014 [cited 2016 Aug 24] Available from http://learn.genetics.utah.edu/content/pigeons/

Chicago format:

Genetic Science Learning Center. "Pigeon Breeding: Genetics At Work." Learn.Genetics. December 2, 2014. Accessed August 24, 2016. http://learn.genetics.utah.edu/content/pigeons/.