Cita APA

Lessenberry, D., & Crawford, T. J. (1947). Twentieth century typewriting.

Citación estilo Chicago

Lessenberry, Ddand, and T. James Crawford. Twentieth Century Typewriting. Ed5, 1947.

Cita MLA

Lessenberry, Ddand, and T. James Crawford. Twentieth Century Typewriting. 1947.

Warning: These citations may not always be 100% accurate.