Gaya APA

E., R, J, C. (2015). Introduction to mathematical proofs : a transition to advanced mathematics (2nd ed.). Boca Raton, Florida: CRC Press.

Gaya MLA

E., Roberts, Jr.,, Charles. "Introduction to mathematical proofs : a transition to advanced mathematics". 2nd ed. Boca Raton, Florida: CRC Press, 2015. Text.