APA (7e ed.) Bronvermelding

Mandel, S. (1989). A time to sing. McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Mandel, Sally. A Time to Sing. New York: McGraw-Hill, 1989.

MLA (9e ed.) Bronvermelding

Mandel, Sally. A Time to Sing. McGraw-Hill, 1989.