APA (7th ed.) Citation

Agricola, I., Friedrich, T., & Spain, P. G. (2008). Elementary geometry. American Mathematical Society. https://doi.org/10.1090/stml/043

Chicago Style (17th ed.) Citation

Agricola, Ilka, Thomas Friedrich, and Philip G. Spain. Elementary Geometry. Providence, Rhode Island: American Mathematical Society, 2008. https://doi.org/10.1090/stml/043.

MLA (9th ed.) Citation

Agricola, Ilka, et al. Elementary Geometry. American Mathematical Society, 2008. https://doi.org/10.1090/stml/043.