Krouwel, B. (2003). Outdoor training: A source book of activites. Viva Books.
シカゴスタイル引用形Krouwel, Bill. Outdoor Training: A Source Book of Activites. New Delhi: Viva Books, 2003.
MLA引用形式Krouwel, Bill. Outdoor Training: A Source Book of Activites. Viva Books, 2003.
警告: この引用は必ずしも正確ではありません.