APA (7th ed.) Citation

Longford, E. H. P. (1983). The Queen: The life of Elizabeth II (1st American ed.). Knopf.

Chicago Style (17th ed.) Citation

Longford, Elizabeth Harman Pakenham. The Queen: The Life of Elizabeth II. 1st American ed. New York: Knopf, 1983.

MLA (9th ed.) Citation

Longford, Elizabeth Harman Pakenham. The Queen: The Life of Elizabeth II. 1st American ed. Knopf, 1983.