ebrary, Inc. (1998). Future directions for the National Science Foundation's Arctic Natural Sciences Program. National Academy Press.
芝加哥风格引文ebrary, Inc. Future Directions for the National Science Foundation's Arctic Natural Sciences Program. Washington, D.C.: National Academy Press, 1998.
MLA引文ebrary, Inc. Future Directions for the National Science Foundation's Arctic Natural Sciences Program. National Academy Press, 1998.
警告：这些引文格式不一定是100％准确.