1. Apodaca, L. 2022. 2018 Minerals Yearbook: Sulfur, Tech. rep., U.S. Geological Survey. https://pubs.usgs.gov/myb/vol1/2018/myb1-2018-sulfur.pdf.
2. Bray, E. 2020a. 2017 Minerals Yearbook: Aluminum [Advance Release], Tech. rep., U.S. Geological Survey. https://d9-wret.s3-us-west-2.amazonaws.com/assets/palladium/production/atoms/files/myb1-2017-alumi.pdf.
3. Bray, E. 2020b. 2017 Minerals Yearbook: Bauxite and Alumina [Advance Release], Tech. rep., U.S. Geological Survey. https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/atoms/files/myb1-2017-bauxi.pdf.
4. Personal correspondence,2021
5. Bray, EL. 2022. 2022 Mineral Commodity Summary: Aluminum, Tech. rep., U.S. Geological Survey. https://pubs.usgs.gov/periodicals/mcs2022/mcs2022-aluminum.pdf.