APA (7th ed.) Citation

Schnabel, R. W. (1960). Geologic map of the Avon quadrangle, Connecticut: Bedrock geology. The Survey.

Chicago Style (17th ed.) Citation

Schnabel, Robert W. Geologic Map of the Avon Quadrangle, Connecticut: Bedrock Geology. Washington, D.C.: The Survey, 1960.

MLA (9th ed.) Citation

Schnabel, Robert W. Geologic Map of the Avon Quadrangle, Connecticut: Bedrock Geology. The Survey, 1960.