APA (7th ed.) Citation

Nicolson, N., & Sackville-West, V. (1973). Portrait of a marriage. Weidenfeld and Nicolson.

Chicago Style (17th ed.) Citation

Nicolson, Nigel, and V. Sackville-West. Portrait of a Marriage. London: Weidenfeld and Nicolson, 1973.

MLA (9th ed.) Citation

Nicolson, Nigel, and V. Sackville-West. Portrait of a Marriage. Weidenfeld and Nicolson, 1973.