APA

(1987). Method of Sampling and Test (Physical and Chemical )for Water and Wastewater. : .

Chicago

1987. Method of Sampling and Test (Physical and Chemical )for Water and Wastewater. : .

Harvard

(1987). Method of Sampling and Test (Physical and Chemical )for Water and Wastewater. : .

MLA

Method of Sampling and Test (Physical and Chemical )for Water and Wastewater. : . 1987.