APA format:

Genetic Science Learning Center. (2015, January 7) Learn.Genetics. Retrieved September 30, 2016, from http://learn.genetics.utah.edu/

CSE format:

Learn.Genetics [Internet]. Salt Lake City (UT): Genetic Science Learning Center; 2015 [cited 2016 Sep 30] Available from http://learn.genetics.utah.edu/

Chicago format:

Genetic Science Learning Center. "Learn.Genetics." Learn.Genetics.January 7, 2015. Accessed September 30, 2016. http://learn.genetics.utah.edu/.