APA (7th ed.) Citation

Wynn, J. C., & Sidder, G. B. (1991). Mineral resource potential of the NB-20-4 Quadrangle, Eastern Guayana Shield, Bolívar State, Venezuela. U.S. Dept. of the Interior, U.S. Geological Survey : Denver, CO.

Chicago Style (17th ed.) Citation

Wynn, Jeffrey C., and Gary B. Sidder. Mineral Resource Potential of the NB-20-4 Quadrangle, Eastern Guayana Shield, Bolívar State, Venezuela. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey : Denver, CO, 1991.

MLA (9th ed.) Citation

Wynn, Jeffrey C., and Gary B. Sidder. Mineral Resource Potential of the NB-20-4 Quadrangle, Eastern Guayana Shield, Bolívar State, Venezuela. U.S. Dept. of the Interior, U.S. Geological Survey : Denver, CO, 1991.