Geological Society of America (GSA) Citation Style

GSA Reference Guidelines and Examples (PDF) 

Book

Allmendinger, R.W., Cardozo, N., and Fisher, D., 2011, Structural Geology Algorithms: Vectors and Tensors in Structural Geology: New York, Cambridge University Press, 304 p

Journal Article

Arias, O., and Denyer, P., 1991, Estructura geológica de la región comprendida en las hojas topográficas Abras, Caraigres, Candelaria y Río Grande, Costa Rica: Revista Geológica de América Central, no. 12, p. 61–74.

Map

Bayley, R.W., and Muehlberger, W.R., compilers, 1968, Basement rock map of the United States, exclusive of Alaska and Hawaii: U.S. Geological Survey, scale 1:2,500,000, 2 sheets.

Website

MARGINS, 1999, The Seismogenic Zone Experiment (SEIZE): Science plan: https://www.soest.hawaii.edu/margins/SEIZE_sci_plan html (accessed July 2001).