APA

Geological Survey (Estados Unidos), . (1995). Concentrations and mass transport of pesticides and organic contaminants in the Mississippi river and some of its tributaries, 1987-89 and 1991-92. Denver, Colorado: Department of Interior.

Chicago

Geological Survey (Estados Unidos), . 1995. Concentrations and mass transport of pesticides and organic contaminants in the Mississippi river and some of its tributaries, 1987-89 and 1991-92. Denver, Colorado: Department of Interior.

Harvard

Geological Survey (Estados Unidos), . (1995). Concentrations and mass transport of pesticides and organic contaminants in the Mississippi river and some of its tributaries, 1987-89 and 1991-92. Denver, Colorado: Department of Interior.

MLA

Geological Survey (Estados Unidos), . Concentrations and mass transport of pesticides and organic contaminants in the Mississippi river and some of its tributaries, 1987-89 and 1991-92. Denver, Colorado: Department of Interior. 1995.