ebrary, Inc, & Rusko, H. (2003). Cross country skiing. Blackwell Science, Ltd..
芝加哥风格引文ebrary, Inc, 与 Heikki Rusko. Cross Country Skiing. Malden, MA: Blackwell Science, Ltd., 2003.
MLA引文ebrary, Inc, 与 Heikki Rusko. Cross Country Skiing. Blackwell Science, Ltd., 2003.
警告：这些引文格式不一定是100％准确.