APA (7th ed.) Citation

D'Angelo lhJohn P. & West. Mathematical thinking: Problem-solving and proofs (2nd.ed.).

Chicago Style (17th ed.) Citation

D'Angelo lhJohn P. and West. Mathematical Thinking: Problem-solving and Proofs. 2nd.ed. New Jersey lbPrentice Hall lc1997.

MLA (9th ed.) Citation

D'Angelo lhJohn P. and West. Mathematical Thinking: Problem-solving and Proofs. 2nd.ed.

Warning: These citations may not always be 100% accurate.