APA format:

Genetic Science Learning Center. (2017, August 1) Unity and Diversity of Life. Retrieved June 17, 2019, from https://learn.genetics.utah.edu/content/evolution/unity

CSE format:

Unity and Diversity of Life [Internet]. Salt Lake City (UT): Genetic Science Learning Center; 2017 [cited 2019 Jun 17] Available from https://learn.genetics.utah.edu/content/evolution/unity

Chicago format:

Genetic Science Learning Center. "Unity and Diversity of Life." Learn.Genetics. August 1, 2017. Accessed June 17, 2019. https://learn.genetics.utah.edu/content/evolution/unity.