The citation of "Digestive System Project"

T whole information of the project is from one source, which is the book of biology 201 & biology 202 courses.

here is the citation.

Losos, J. B., Mason, K. A., & Singer, S.R. (2008). The digestive system. In Losos, J. B. & Mason K. A. & Singer S.R. (Eds.), Biology (pp. 963-981). New York: McGraw-Hill.