@article{159191, recid = {159191}, title = {Homestudy course 3014-G, waterborne disease control : [General directions and course information].}, publisher = {Center for Professional Development and Training, U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control,}, address = {[Atlanta, Ga.?] :}, pages = {5 leaves ;}, year = {1982}, note = {Cover title.}, url = {http://library.usi.edu/record/159191}, }