Barrera, G. A. F. (2009). Water proporcional meters used as a tool for integrated water management. Universidad del Zulia.
Chicago-Zitierstil (17. Ausg.)Barrera, Guillermo Andrés Fuentes. Water Proporcional Meters Used as a Tool for Integrated Water Management. Universidad del Zulia, 2009.
MLA-Zitierstil (9. Ausg.)Barrera, Guillermo Andrés Fuentes. Water Proporcional Meters Used as a Tool for Integrated Water Management. Universidad del Zulia, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.