Johner, D., & Butterfield, H. S. (1906). A new school of Gregorian chant. Fr. Pustet.
Chicagoスタイル(17版)引用形式Johner, Dominicus, , Henry S. Butterfield. A New School of Gregorian Chant. Ratisbon: Fr. Pustet, 1906.
MLA(8版)引用形式Johner, Dominicus, , Henry S. Butterfield. A New School of Gregorian Chant. Fr. Pustet, 1906.
警告: この引用は必ずしも正確ではありません.