Circular.

Bibliographic Details
Corporate Authors:	North Dakota Geological Survey, Geological Survey (U.S.), United States. Works Progress Administraion, North Dakota
Format:	Serial
Language:	English
Published:	[Grand Forks?] [publisher not identified] ;
Subjects:	Water-supply > North Dakota.

Description
Published:	no. 1- Oct. 15, 1937-
Item Description:	Some nos. issued without dates.
Physical Description:	numbers : illustrations ; 28 cm. irreg.