Geological Survey (U.S.). (1926). Set of 50 atlas sheets showing physiographic types and features of interest to engineers. [publisher not identified].
Chicago Style (17th ed.) CitationGeological Survey (U.S.). Set of 50 Atlas Sheets Showing Physiographic Types and Features of Interest to Engineers. [Place of publication not identified]: [publisher not identified], 1926.
MLA (9th ed.) CitationGeological Survey (U.S.). Set of 50 Atlas Sheets Showing Physiographic Types and Features of Interest to Engineers. [publisher not identified], 1926.
Warning: These citations may not always be 100% accurate.