The ratproofing of new ships
By: by P. W. Clark ...
Publisher: U.S. Govt. print. off.
Published: 1939
Place of publication: Washington
Language: eng
Number of pages: 50
Subjects: Ships -- Sanitation.; Rats -- Control.
Notes: At head of title: United States Treasury dept.  Public health service.  Thomas Parran, surgeon general.
Film copy.