Schumann, H. H., Anderson, S. R., Geological Survey, & Tucson. (1988). Land-subsidence measurements and aquifer-compaction monitoring in Tucson Basin and Avra Valley, Arizona. U.S. Geological Survey.
Chicago Style (17th ed.) CitationSchumann, Herbert H., S. R. Anderson, Geological Survey, and Tucson. Land-subsidence Measurements and Aquifer-compaction Monitoring in Tucson Basin and Avra Valley, Arizona. Tucson, Arizona: U.S. Geological Survey, 1988.
MLA (8th ed.) CitationSchumann, Herbert H., et al. Land-subsidence Measurements and Aquifer-compaction Monitoring in Tucson Basin and Avra Valley, Arizona. U.S. Geological Survey, 1988.
Warning: These citations may not always be 100% accurate.