Cita APA (7th ed.)

ebrary, Inc, & Irwin, W. (2012). Black Sabbath & philosophy: Mastering reality. Wiley-Blackwell.

Cita Chicago (17th ed.)

ebrary, Inc, i William Irwin. Black Sabbath & Philosophy: Mastering Reality. Chichester, West Sussex ; Malden, MA: Wiley-Blackwell, 2012.

Cita MLA (9th ed.)

ebrary, Inc, i William Irwin. Black Sabbath & Philosophy: Mastering Reality. Wiley-Blackwell, 2012.