Petsalis-Diomidis, Nicholas. The Unknown Callas: The Greek Years. Translated by Timothy Cullen. With a foreword by the Earl of Harewood. Opera Biography Series, 14. Portland, OR: Amadeus Press, 2001. 672 p.

ISBN 157467059X; 9781574670592

Includes: The Earl of Harewood, Foreword (11-19).

Bibliography (pp. 391-602); Notes by the author (pp. 603-658).

Η άγνωστη Κάλλας: Τα ελληνικά χρόνια (Αθήνα: Καστανιώτης, 1998)