Cita APA

American Water Works Association (AWWA). (2014). Manual of water of supply practices M21: Groundwater (fourth edition.). Colorado, Estados Unidos de América: AWWA.

Citación estilo Chicago

American Water Works Association (AWWA). Manual of Water of Supply Practices M21: Groundwater. fourth edition. Colorado, Estados Unidos de América: AWWA, 2014.

Cita MLA

American Water Works Association (AWWA). Manual of Water of Supply Practices M21: Groundwater. fourth edition. Colorado, Estados Unidos de América: AWWA, 2014.