Hartog, H. (1961). European music in the twentieth century. Penguin Books.
Chicagoスタイル(17版)引用形式Hartog, Howard. European Music in the Twentieth Century. Londres: Penguin Books, 1961.
MLA(9版)引用形式Hartog, Howard. European Music in the Twentieth Century. Penguin Books, 1961.
警告: この引用は必ずしも正確ではありません.