APA (7th ed.) Citation

Mortimer, J. C., Mortimer, J. C., & Mortimer, J. C. (1982). A voyage round my father. Penguin Books.

Chicago Style (17th ed.) Citation

Mortimer, John Clifford, John Clifford Mortimer, and John Clifford Mortimer. A Voyage Round My Father. Harmondsworth, Middlesex: Penguin Books, 1982.

MLA (9th ed.) Citation

Mortimer, John Clifford, et al. A Voyage Round My Father. Penguin Books, 1982.