APA (7th ed.) Citation

Pennsylvania. Bureau of Topographic and Geologic Survey. (1970). Glacial deposits of Pennsylvania. The Survey.

Chicago Style (17th ed.) Citation

Pennsylvania. Bureau of Topographic and Geologic Survey. Glacial Deposits of Pennsylvania. [Harrisburg?]: The Survey, 1970.

MLA (9th ed.) Citation

Pennsylvania. Bureau of Topographic and Geologic Survey. Glacial Deposits of Pennsylvania. The Survey, 1970.

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