Berg, D. W., & Watts, G. M. (1967). Variations in groin design. U.S. Army Engineer Coastal Engineering Research Center, Dept. of the Army, Corps of Engineers.
芝加哥风格引文Berg, Dennis W., 与 George M. Watts. Variations in Groin Design. [Washington, D.C.]: U.S. Army Engineer Coastal Engineering Research Center, Dept. of the Army, Corps of Engineers, 1967.
MLA引文Berg, Dennis W., 与 George M. Watts. Variations in Groin Design. U.S. Army Engineer Coastal Engineering Research Center, Dept. of the Army, Corps of Engineers, 1967.
警告：这些引文格式不一定是100％准确.