APA (7th ed.) Citation

Johnston, B. (1978). Knocking piece: For piano interior (2 players) (Spielpartitur.). Smith.

Chicago Style (17th ed.) Citation

Johnston, Ben. Knocking Piece: For Piano Interior (2 Players). Spielpartitur. S.l: Smith, 1978.

MLA (9th ed.) Citation

Johnston, Ben. Knocking Piece: For Piano Interior (2 Players). Spielpartitur. Smith, 1978.

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