APA (7th ed.) Citation

Boyd, L. A., & Boyd, G. o. L. A. (1933). Greenland, Arch Glacier at Gregory Valley, now Northeast Greenland National Park.

Chicago Style (17th ed.) Citation

Boyd, Louise Arner, and Gift of Louise A. Boyd. Greenland, Arch Glacier at Gregory Valley, Now Northeast Greenland National Park. 1933.

MLA (9th ed.) Citation

Boyd, Louise Arner, and Gift of Louise A. Boyd. Greenland, Arch Glacier at Gregory Valley, Now Northeast Greenland National Park. 1933.

Warning: These citations may not always be 100% accurate.