Cita APA

Younger, P. L., & Younger, P. L. (2007). Groundwater in the environment: An introduction. Malden, Mass: Blackwell.

Citación estilo Chicago

Younger, Paul L., y Paul L. Younger. Groundwater in the Environment: An Introduction. Malden, Mass: Blackwell, 2007.

Cita MLA

Younger, Paul L., y Paul L. Younger. Groundwater in the Environment: An Introduction. Malden, Mass: Blackwell, 2007.