Cita APA (7th ed.)

Watts, C. T. (1985). A preface to Keats. Longman.

Cita Chicago (17th ed.)

Watts, Cedric Thomas. A Preface to Keats. London ; New York: Longman, 1985.

Cita MLA (8th ed.)

Watts, Cedric Thomas. A Preface to Keats. Longman, 1985.