Forgey, Staci. "Summary of characteristics of 9 animal phyla". OER Commons. Institute for the Study of Knowledge Management in Education, 16 Nov. 2018. Web. 06 Nov. 2024. <https://oercommons.org/authoring/49256-summary-of-characteristics-of-9-animal-phyla>.
Forgey, S. (2018, November 16). Summary of characteristics of 9 animal phyla. OER Commons. Retrieved November 06, 2024, from https://oercommons.org/authoring/49256-summary-of-characteristics-of-9-animal-phyla.