Cita APA

Duncan, D. C. (1969). Arithmetic in a liberal education. McGraw-Hill Book Co., Inc.

Citación estilo Chicago

Duncan, Dewey C. Arithmetic in a Liberal Education. New York: McGraw-Hill Book Co., Inc, 1969.

Cita MLA

Duncan, Dewey C. Arithmetic in a Liberal Education. McGraw-Hill Book Co., Inc, 1969.