1. Beck, R. H., 1972, The oceans, the new frontier in exploration. Austral. Petr. Expl. Assoc., v. 12, pt. 2, p. 5–28.
2. Burk, C. A., 1972, Uplifted eugeosynclines at continental margins. Geol. Soc. America Mem. 132, p. 75–85.
3. Bush, S. A., and Bush, P. A., 1969, Isostatic gravity map of eastern Caribbean region. Trans. Gulf Coast Assoc. Geol. Socs., v. 19, p. 281–285.
4. Chase„ R. L., and Bunce, E. T., 1969, Underthrusting of the eastern margin of the Antilles by the floor of the western North Atlantic Ocean, and origin of the Barbados ridge. Jour. Geophys. Res., v. 74, p. 1413–1420.
5. Dengo, G., 1962, Tectonic-igneous sequence in Costa Rica, in Engel, A. E. J., James, H. L., and Leonard, B. F., eds., Petrologic studies. a volume in honor of A. F. Buddington. Geol. Soc. America, p. 133–161.