Cita APA (7a ed.)

Williams, M. (1993). A preface to Hardy (2nd ed.). Longman.

Cita Chicago Style (17a ed.)

Williams, Merryn. A Preface to Hardy. 2nd ed. London [etc.]: Longman, 1993.

Cita MLA (9a ed.)

Williams, Merryn. A Preface to Hardy. 2nd ed. Longman, 1993.