APA (7th ed.) Citation

Geological Survey (U.S.) & ProQuest (Firm). (1924). [Mineral resources of United States, 1921, 2 vols.]. [publisher not identified].

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). [Mineral Resources of United States, 1921, 2 Vols.]. Washington: [publisher not identified], 1924.

MLA (9th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). [Mineral Resources of United States, 1921, 2 Vols.]. [publisher not identified], 1924.

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