APA Edition Citation

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

Chicago Edition Citation

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

MLA Edition Citation

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

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