Cita APA (7a ed.)

Showalter, P. S. (1991). Field observations in Memphis during the new Madrid earthquake projection of 1990: How pseudoscience affected a region. Natural Hazards Research & Applications Information Center, University of Colorado.

Cita Chicago Style (17a ed.)

Showalter, Pamela Sands. Field Observations in Memphis During the New Madrid Earthquake Projection of 1990: How Pseudoscience Affected a Region. Boulder: Natural Hazards Research & Applications Information Center, University of Colorado, 1991.

Cita MLA (9a ed.)

Showalter, Pamela Sands. Field Observations in Memphis During the New Madrid Earthquake Projection of 1990: How Pseudoscience Affected a Region. Natural Hazards Research & Applications Information Center, University of Colorado, 1991.