Liberman, Howard, photographer. “Industrial safety. Accident prevention. This shop worker is ‘asking for it.’ The use of a makeshift ‘ladder’ like this is always hazardous--doubly so when heavy, bulky, or unwieldy objects are being put in place or removed.” Photograph, 1942. From Library of Congress: Farm Security Administration – Office of War Information Photograph Collection, Call number LC-USE6- D-005565. http://loc.gov/pictures/resource/fsa.8b03955/ (accessed March 20, 2007).