APA-Zitierstil (7. Ausg.)

Willis, R. (1989). Sax therapy: For partners bored with their sax-life! : (easyish jazz duets for alto and tenor sax). Virgo Music Publishers.

Chicago-Zitierstil (17. Ausg.)

Willis, Rob. Sax Therapy: For Partners Bored with Their Sax-life! : (easyish Jazz Duets for Alto and Tenor Sax). Solihull, Great Britain: Virgo Music Publishers, 1989.

MLA-Zitierstil (9. Ausg.)

Willis, Rob. Sax Therapy: For Partners Bored with Their Sax-life! : (easyish Jazz Duets for Alto and Tenor Sax). Virgo Music Publishers, 1989.