Cita APA

Bernknopf, R. L., Dinitz, L. B., & Loague, K. M. (2001). An interdisciplinary assessment of regional-scale nonpoint ground-water vulnerability: Theory and application. U.S. Geological Survey.

Citación estilo Chicago

Bernknopf, Richard L., Laura B. Dinitz, and Keith M. Loague. An Interdisciplinary Assessment of Regional-scale Nonpoint Ground-water Vulnerability: Theory and Application. Menlo Park, CA: U.S. Geological Survey, 2001.

Cita MLA

Bernknopf, Richard L., et al. An Interdisciplinary Assessment of Regional-scale Nonpoint Ground-water Vulnerability: Theory and Application. U.S. Geological Survey, 2001.