Cita APA (7a ed.)

Geological Society of América, Costa, J. E., & Sylvester, A. G. (1890). Geological Society of América Bulletin. Geological Society of América.

Cita Chicago Style (17a ed.)

Geological Society of América, John E. Costa, y Arthur G. Sylvester. Geological Society of América Bulletin. Boulder,CO: Geological Society of América, 1890.

Cita MLA (8a ed.)

Geological Society of América, et al. Geological Society of América Bulletin. Geological Society of América, 1890.