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4. American Wood Council (AWC) (2015) ANSI/AWC NDS 2015: National Design Specification for Wood Construction. American National Standard Institute/American Wood Council, Leesburg, VA., DC. 202 pg.
5. American Wood Council (AWC) (2018) ANSI/AWC NDS 2018: National Design Specification for Wood Construction. American National Standard Institute/American Wood Council, Leesburg, VA., DC. 206 pg.