Gaya APA

Institute, P, T. (2007). PTI Guide Specification: Specification For Seven –Wire Prestressing Stell Strand For Barrier Cable Applications . Phoenix: PTI.

Gaya MLA

Institute, Post, Tensioning. "PTI Guide Specification: Specification For Seven –Wire Prestressing Stell Strand For Barrier Cable Applications". Phoenix: PTI, 2007. Text.