APA (7th ed.) Citation

Cardwell, A. E. A new proof of a lemma by Phelps. Wiley.

Chicago Style (17th ed.) Citation

Cardwell, Antonia E. A New Proof of a Lemma by Phelps. Wiley.

MLA (9th ed.) Citation

Cardwell, Antonia E. A New Proof of a Lemma by Phelps. Wiley.

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