APA (7th ed.) Citation

Geological Survey (U.S.), Leach, D. L., & Goldfarb, R. J. (1989). Maps showing the distribution of sum of the ranks for concentrations of lead + zinc + copper + silver and lead + zinc in samples of stream sediment from the Wallace 1⁰ x 2⁰ quadrangle, Montana and Idaho. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), D. L. Leach, and R. J. Goldfarb. Maps Showing the Distribution of Sum of the Ranks for Concentrations of Lead + Zinc + Copper + Silver and Lead + Zinc in Samples of Stream Sediment from the Wallace 1⁰ X 2⁰ Quadrangle, Montana and Idaho. Reston, Va.: The Survey, 1989.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Maps Showing the Distribution of Sum of the Ranks for Concentrations of Lead + Zinc + Copper + Silver and Lead + Zinc in Samples of Stream Sediment from the Wallace 1⁰ X 2⁰ Quadrangle, Montana and Idaho. The Survey, 1989.