MLA

Cruz, Lito Perez. Theoremus : A Student's Guide to Mathematical Proofs. Springer International Publishing, 2021.

APA

Cruz, L. Perez. (2021). Theoremus : A Student's Guide to Mathematical Proofs. Springer International Publishing.

Chicago

Cruz, Lito Perez Theoremus : A Student's Guide to Mathematical Proofs. : Springer International Publishing, 2021.