APA (7th ed.) Citation

Gittings, R. (1968). John Keats ([1st American ed.].). Little, Brown.

Chicago Style (17th ed.) Citation

Gittings, Robert. John Keats. [1st American ed.]. Boston: Little, Brown, 1968.

MLA (9th ed.) Citation

Gittings, Robert. John Keats. [1st American ed.]. Little, Brown, 1968.