Cita APA

Presgrave, B. W., Needham, R. E., & Minsch, J. H. (1985). Seismograph station codes and coordinates (1985 ed.). U.S. Geological Survey.

Citación estilo Chicago

Presgrave, Bruce W., Russell E. Needham, and John H. Minsch. Seismograph Station Codes and Coordinates. 1985 ed. Denver, Colo.: U.S. Geological Survey, 1985.

Cita MLA

Presgrave, Bruce W., et al. Seismograph Station Codes and Coordinates. 1985 ed. U.S. Geological Survey, 1985.