APA (7th ed.) Citation

O'brien, E. (1981). Girls In Their married Bliss. Penguin Books.

Chicago Style (17th ed.) Citation

O'brien, Edna. Girls In Their Married Bliss. Great Britain: Penguin Books, 1981.

MLA (9th ed.) Citation

O'brien, Edna. Girls In Their Married Bliss. Penguin Books, 1981.