APA Style

Williams, W, P., Abbott, C, S. (1989). An introduction to bibliographical and textual studies / by William Proctor Williams and Craig S. Abbott. (Second Edition). New York: Modern Language Association of America.

MLA Style

Williams, William, Proctor., Abbott, Craig, S.. "An introduction to bibliographical and textual studies / by William Proctor Williams and Craig S. Abbott.". Second Edition New York: Modern Language Association of America, 1989. Text.