APA
United States, CCH Incorporated, . (1999). Occupational safety and health standards for the construction industry (29 CFR part 1926). Chicago: CCH Inc.
Chicago
United States, CCH Incorporated, . 1999. Occupational safety and health standards for the construction industry (29 CFR part 1926). Chicago: CCH Inc.
Harvard
United States, CCH Incorporated, . (1999). Occupational safety and health standards for the construction industry (29 CFR part 1926). Chicago: CCH Inc.
MLA
United States, CCH Incorporated, . Occupational safety and health standards for the construction industry (29 CFR part 1926). Chicago: CCH Inc. 1999.