Cita APA (7th ed.)
Leeuw, T. d., & Groot, R. d. (2005). Music of the twentieth century: A study of its elements and structure. Amsterdam University Press.
Cita Chicago (17th ed.)
Leeuw, Ton de, i Rokus de Groot. Music of the Twentieth Century: A Study of Its Elements and Structure. [Amsterdam]: Amsterdam University Press, 2005.
Cita MLA (9th ed.)
Leeuw, Ton de, i Rokus de Groot. Music of the Twentieth Century: A Study of Its Elements and Structure. Amsterdam University Press, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.