World Data Center A for Glaciology & Scharfen, G. (1979). Snow cover. World Data Center A for Glaciology (Snow and Ice), Institute of Arctic and Alpine Research, University of Colorado.
芝加哥风格引文World Data Center A for Glaciology 与 Greg Scharfen. Snow Cover. Boulder, Colo.: World Data Center A for Glaciology (Snow and Ice), Institute of Arctic and Alpine Research, University of Colorado, 1979.
MLA引文World Data Center A for Glaciology 与 Greg Scharfen. Snow Cover. World Data Center A for Glaciology (Snow and Ice), Institute of Arctic and Alpine Research, University of Colorado, 1979.
警告：这些引文格式不一定是100％准确.