Cita APA (7th ed.)

(1963). Variations IV: For any number of players, any sounds or combinations of sounds produced by any means, with or without other activities / John Cage.

Cita Chicago (17th ed.)

Variations IV: For Any Number of Players, Any Sounds or Combinations of Sounds Produced by Any Means, with or Without Other Activities / John Cage. 1963.

Cita MLA (9th ed.)

Variations IV: For Any Number of Players, Any Sounds or Combinations of Sounds Produced by Any Means, with or Without Other Activities / John Cage. 1963.