Hearn, P. P. (1985). Controls on phosphorus mobility in the Potomac River near the Blue Plains wastewater treatment plant. United States Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Hearn, Paul P. Controls on Phosphorus Mobility in the Potomac River Near the Blue Plains Wastewater Treatment Plant. [Washington]: United States Gov. Print. Off, 1985.
MLA-Zitierstil (9. Ausg.)Hearn, Paul P. Controls on Phosphorus Mobility in the Potomac River Near the Blue Plains Wastewater Treatment Plant. United States Gov. Print. Off, 1985.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.