APA (7th ed.) Citation

Portsmouth, G. V. W. (1965). A knot of roots: An autobiography. New American Library.

Chicago Style (17th ed.) Citation

Portsmouth, Gerard Vernon Wallop. A Knot of Roots: An Autobiography. [New York]: New American Library, 1965.

MLA (9th ed.) Citation

Portsmouth, Gerard Vernon Wallop. A Knot of Roots: An Autobiography. New American Library, 1965.