APA (7th ed.) Citation

American Geographical Society of New York. Map Department. (1968). Index to maps in books and periodicals. G.K. Hall.

Chicago Style (17th ed.) Citation

American Geographical Society of New York. Map Department. Index to Maps in Books and Periodicals. Boston: G.K. Hall, 1968.

MLA (9th ed.) Citation

American Geographical Society of New York. Map Department. Index to Maps in Books and Periodicals. G.K. Hall, 1968.