APA (7th ed.) Citation

York, A. G. S. o. N. (1948). The American Geographical Society's map of the Americas, 1: 5,000,000 index to the two sheets : Alaska, Northern Canada, and Greenland, United States, Southern Canada, and Newfoundland. New York : The Society.

Chicago Style (17th ed.) Citation

York, American Geographical Society of New. The American Geographical Society's Map of the Americas, 1: 5,000,000 Index to the Two Sheets : Alaska, Northern Canada, and Greenland, United States, Southern Canada, and Newfoundland. New York : The Society, 1948.

MLA (9th ed.) Citation

York, American Geographical Society of New. The American Geographical Society's Map of the Americas, 1: 5,000,000 Index to the Two Sheets : Alaska, Northern Canada, and Greenland, United States, Southern Canada, and Newfoundland. New York : The Society, 1948.