Weiss, K., & Cooke, N. Helical spring design. N.S.W. U.P..
Chicago Style (17th ed.) CitationWeiss, Kurt, and Norman Cooke. Helical Spring Design. Sydney: N.S.W. U.P..
MLA citiranjeWeiss, Kurt, and Norman Cooke. Helical Spring Design. N.S.W. U.P..
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