APA (7th ed.) Citation

Williams, W. P., & Abbott, C. S. (2009). An introduction to bibliographical and textual studies (4th ed.). Modern Language Association of America.

Chicago Style (17th ed.) Citation

Williams, William Proctor, and Craig S. Abbott. An Introduction to Bibliographical and Textual Studies. 4th ed. New York: Modern Language Association of America, 2009.

MLA (8th ed.) Citation

Williams, William Proctor, and Craig S. Abbott. An Introduction to Bibliographical and Textual Studies. 4th ed. Modern Language Association of America, 2009.