APA Citation

 Rossi, R. J. (2006).  Theorems, corollaries, lemmas, and methods of proof.  John Wiley & Sons.

Chicago Style Citation

 Rossi, Richard J.  Theorems, Corollaries, Lemmas, and Methods of Proof.  John Wiley & Sons, 2006.

MLA Citation

 Rossi, Richard J.  Theorems, Corollaries, Lemmas, and Methods of Proof.  John Wiley & Sons, 2006.

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