Morash, R. P. (1987). Bridge to abstract mathematics: Mathematical proofs and structures. Randon House, Inc.
Cita Chicago (17th ed.)Morash, Ronald P. Bridge to Abstract Mathematics: Mathematical Proofs and Structures. New York: Randon House, Inc, 1987.
Cita MLA (9th ed.)Morash, Ronald P. Bridge to Abstract Mathematics: Mathematical Proofs and Structures. Randon House, Inc, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.