APA (7th ed.) Citation

Marks, L., & Van den Bergh, T. (1990). Ruth Ellis : a case of diminished responsibility? / Laurence Marks and Tony Van den Bergh: A case of diminished responsibility? Penguin.

Chicago Style (17th ed.) Citation

Marks, Laurence, and Tony Van den Bergh. Ruth Ellis : A Case of Diminished Responsibility? / Laurence Marks and Tony Van Den Bergh: A Case of Diminished Responsibility? London: Penguin, 1990.

MLA (9th ed.) Citation

Marks, Laurence, and Tony Van den Bergh. Ruth Ellis : A Case of Diminished Responsibility? / Laurence Marks and Tony Van Den Bergh: A Case of Diminished Responsibility? Penguin, 1990.

Warning: These citations may not always be 100% accurate.