APA (7th ed.) Citation

Geological Survey (U.S.). (1953). Interpreting geologic maps for engineering purposes: Hollidaysburg quadrangle, Pennsylvania.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). Interpreting Geologic Maps for Engineering Purposes: Hollidaysburg Quadrangle, Pennsylvania. Washington, 1953.

MLA (8th ed.) Citation

Geological Survey (U.S.). Interpreting Geologic Maps for Engineering Purposes: Hollidaysburg Quadrangle, Pennsylvania. 1953.

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