(1972). An investigation into recreational water quality. US Government Printing Office.
Chicago-Zitierstil (17. Ausg.)An Investigation into Recreational Water Quality. Washington, DC: US Government Printing Office, 1972.
MLA-Zitierstil (9. Ausg.)An Investigation into Recreational Water Quality. US Government Printing Office, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.