APA (7th ed.) Citation

Mark, K. (1993). Valved Friends: For two trumpets and band / Koos Mark (Full score, condensed score.). Molenaar.

Chicago Style (17th ed.) Citation

Mark, Koos. Valved Friends: For Two Trumpets and Band / Koos Mark. Full score, condensed score. Wormerveer, Holland: Molenaar, 1993.

MLA (8th ed.) Citation

Mark, Koos. Valved Friends: For Two Trumpets and Band / Koos Mark. Full score, condensed score. Molenaar, 1993.

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