APA

Perna J. B., Library of Congress, . (1974). Occupational Safety and Health Act, 1970: a bibliography. Washington, D.C: Law Library, Library of Congress.

Chicago

Perna John B, Library of Congress, . 1974. Occupational Safety and Health Act, 1970: a bibliography. Washington, D.C: Law Library, Library of Congress.

Harvard

Perna J. B., Library of Congress, . (1974). Occupational Safety and Health Act, 1970: a bibliography. Washington, D.C: Law Library, Library of Congress.

MLA

Perna John B, Library of Congress, . Occupational Safety and Health Act, 1970: a bibliography. Washington, D.C: Law Library, Library of Congress. 1974.