Keywords: IBphysicsSL.jpg Book cover en wikibooks Adrignola CommonsHelper 2007-05-06 Dofkex wikibooks en b English Wikibooks Dofkex Wikimedia trademark Cc-by-sa-3 0 original upload log page en wikibooks IBphysicsSL jpg 2007-05-06 13 48 Dofkex 480×600× 76696 bytes <nowiki>Book cover</nowiki> Wikibooks covers |