APA (7th ed.) Citation

York, A. G. S. o. N. (1930). Map showing the field of operations of the Wilkins-Hearst Antarctic Expedition during the season of 1929-1930 / copyright . by the American Geographical Society of New York. American Geographical Society of New York.

Chicago Style (17th ed.) Citation

York, American Geographical Society of New. Map Showing the Field of Operations of the Wilkins-Hearst Antarctic Expedition During the Season of 1929-1930 / Copyright . by the American Geographical Society of New York. American Geographical Society of New York, 1930.

MLA (9th ed.) Citation

York, American Geographical Society of New. Map Showing the Field of Operations of the Wilkins-Hearst Antarctic Expedition During the Season of 1929-1930 / Copyright . by the American Geographical Society of New York. American Geographical Society of New York, 1930.