Pillangócsomó (Hungarian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pillangócsomó" in Hungarian language version.

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archive.org

Smith, Bruce. On Rope; North American Vertical Rope Techniques, New Revised, Huntsville, Ala.: National Speleological Society, 49. o. (1996). ISBN 1-879961-05-9
Marbach, Georges. Alpine Caving Techniques; A Complete Guide to Safe and Efficient Caving, English edition translated and adapted by Melanie Alspaugh, Allschwil, Switzerland: Speleo Projects, Caving Publications International, 73. o. (2002). ISBN 3-908495-10-5

books.google.com

Burger, A.A. (1914). „Rope and Its Uses”. Extension Bulletin 24, Ames XIII (8), 24–25. o, Kiadó: Iowa State College of Agricultural and Mechanic Arts. (Hozzáférés: 2010. szeptember 9.)