MLA

Lahr, John. The Orton Diaries : Including the Correspondence of Edna Welthorpe and Others. London: Methuen-Mandarin, 1990.

APA

Lahr, J. (1990). The Orton diaries : including the correspondence of Edna Welthorpe and others. London: Methuen-Mandarin.

Chicago

Lahr, John The Orton Diaries: Including the Correspondence of Edna Welthorpe and Others. London: Methuen-Mandarin, 1990.