APA (7th ed.) Citation

Geological Survey (U.S.) & ProQuest (Firm). (1909). [Water-supply paper 235; Purification of some factory wastes]. [publisher not identified].

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). [Water-supply Paper 235; Purification of Some Factory Wastes]. Washington: [publisher not identified], 1909.

MLA (9th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). [Water-supply Paper 235; Purification of Some Factory Wastes]. [publisher not identified], 1909.

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