APA (7th ed.) Citation

Walter, B., & Boulez, P. (1979). Gustav Mahler. Livre de poche.

Chicago Style (17th ed.) Citation

Walter, Bruno, and Pierre Boulez. Gustav Mahler. Paris: Livre de poche, 1979.

MLA (9th ed.) Citation

Walter, Bruno, and Pierre Boulez. Gustav Mahler. Livre de poche, 1979.

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