Roberts, C. E. (2010). Introduction to mathematical proofs: A transition. CRC.
Dyfyniad Arddull ChicagoRoberts, Charles E. Introduction to Mathematical Proofs: A Transition. Boca Raton: CRC, 2010.
Dyfyniad MLARoberts, Charles E. Introduction to Mathematical Proofs: A Transition. CRC, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.