Dyfyniad APA
Williams, S. J., Dodd, K., & Gohn, K. K. (1990). Coasts in crisis. U.S. Dept. of the Interior, U.S. Geological Survey ; Books and Open-File Reports Section, U.S. Geoglogical Survey [distributor].
Dyfyniad Arddull Chicago
Williams, S. Jeffress, Kurt Dodd, and Kathleen K. Gohn. Coasts in Crisis. [Reston, VA?] : Denver, CO: U.S. Dept. of the Interior, U.S. Geological Survey ; Books and Open-File Reports Section, U.S. Geoglogical Survey [distributor], 1990.
Dyfyniad MLA
Williams, S. Jeffress, et al. Coasts in Crisis. U.S. Dept. of the Interior, U.S. Geological Survey ; Books and Open-File Reports Section, U.S. Geoglogical Survey [distributor], 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.