Liebers, A. (1974). The complete book of cross-country skiing and ski touring. Coward, McCann & Geoghegan.
Citazione stile Chigago Style (17a edizione)Liebers, Arthur. The Complete Book of Cross-country Skiing and Ski Touring. New York: Coward, McCann & Geoghegan, 1974.
Citatione MLA (8a ed.)Liebers, Arthur. The Complete Book of Cross-country Skiing and Ski Touring. Coward, McCann & Geoghegan, 1974.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.