APA-Zitierstil (7. Ausg.)

Johnston, R. H. (1999). Hydrologic budgets of regional aquifer systems of the United States for predevelopment and development conditions (Rev.). USGS Information Services.

Chicago-Zitierstil (17. Ausg.)

Johnston, Richard H. Hydrologic Budgets of Regional Aquifer Systems of the United States for Predevelopment and Development Conditions. Rev. Denver, CO: USGS Information Services, 1999.

MLA-Zitierstil (9. Ausg.)

Johnston, Richard H. Hydrologic Budgets of Regional Aquifer Systems of the United States for Predevelopment and Development Conditions. Rev. USGS Information Services, 1999.