APA

Hearn P. P., . (1985). Controls on phosphorus mobility in the Potomac River near the Blue Plains wastewater treatment plant. [Washington, DC]: US Gov. Print. Off.

Chicago

Hearn Paul P, . 1985. Controls on phosphorus mobility in the Potomac River near the Blue Plains wastewater treatment plant. [Washington, DC]: US Gov. Print. Off.

Harvard

Hearn P. P., . (1985). Controls on phosphorus mobility in the Potomac River near the Blue Plains wastewater treatment plant. [Washington, DC]: US Gov. Print. Off.

MLA

Hearn Paul P, . Controls on phosphorus mobility in the Potomac River near the Blue Plains wastewater treatment plant. [Washington, DC]: US Gov. Print. Off. 1985.