APA

Barth P. S., United States, . (1973). Supplemental studies for the National Commission on State Workmen's Compensation Laws. Washington: [For sale by the Supt. of Docs., Govt. Print. Off.].

Chicago

Barth Peter S, United States, . 1973. Supplemental studies for the National Commission on State Workmen's Compensation Laws. Washington: [For sale by the Supt. of Docs., Govt. Print. Off.].

Harvard

Barth P. S., United States, . (1973). Supplemental studies for the National Commission on State Workmen's Compensation Laws. Washington: [For sale by the Supt. of Docs., Govt. Print. Off.].

MLA

Barth Peter S, United States, . Supplemental studies for the National Commission on State Workmen's Compensation Laws. Washington: [For sale by the Supt. of Docs., Govt. Print. Off.]. 1973.