Cita APA (7th ed.)

Ehret, W. (1963). The international book of Christmas carols. Prentice-Hall.

Cita Chicago (17th ed.)

Ehret, Walter. The International Book of Christmas Carols. Englewood Cliffs, N.J: Prentice-Hall, 1963.

Cita MLA (9th ed.)

Ehret, Walter. The International Book of Christmas Carols. Prentice-Hall, 1963.