Rovsing Olsen, P. (1969). Duo: For accordion and piano op. 56 / Poul Rovsing Olsen. Hohner.
Chicago Style (17th ed.) CitationRovsing Olsen, Poul. Duo: For Accordion and Piano Op. 56 / Poul Rovsing Olsen. Trossingen: Hohner, 1969.
MLA (8th ed.) CitationRovsing Olsen, Poul. Duo: For Accordion and Piano Op. 56 / Poul Rovsing Olsen. Hohner, 1969.
Warning: These citations may not always be 100% accurate.