Cita APA

Unwin, W. C. 1. (1909). The Elements of machine desing (edition rev. and enl.). New York, New York: Longmans, Green.

Citación estilo Chicago

Unwin, William Cawthorne 1838-1933. The Elements of Machine Desing. edition rev. and enl. New York, New York: Longmans, Green, 1909.

Cita MLA

Unwin, William Cawthorne 1838-1933. The Elements of Machine Desing. edition rev. and enl. New York, New York: Longmans, Green, 1909.