APA引文

Perry, C. A., Aldridge, B. N., & Ross, H. C. (2001). Summary of significant floods in the United States, Puerto Rico, and the Virgin Islands, 1970 through 1989. U.S. G.P.O. For sale by the USGS Map Distribution.

芝加哥风格引文

Perry, Charles A., B. N. Aldridge, 与 H. C. Ross. Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989. Washington, Denver, CO: U.S. G.P.O. For sale by the USGS Map Distribution, 2001.

MLA引文

Perry, Charles A., et al. Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989. U.S. G.P.O. For sale by the USGS Map Distribution, 2001.