APA (7th ed.) Citation

Greene, G., & Hawtree, C. (1991). Yours etc: Letters to the press. Penguin Books.

Chicago Style (17th ed.) Citation

Greene, Graham, and Christopher Hawtree. Yours Etc: Letters to the Press. London [etc.]: Penguin Books, 1991.

MLA (9th ed.) Citation

Greene, Graham, and Christopher Hawtree. Yours Etc: Letters to the Press. Penguin Books, 1991.