Chapter 18. Alberto Böckh. 1972. Consequences of uncontrolled human activities in the Valencia Lake basin. Pages 301-317.

Keywords: Venezuela, increased salinity of the lake, water levels is declining and becoming polluted, geological research, measurable changes, hydrological balance and desiccation, beginning of the drying process, level of the lake in 1880, El Paíto Lagoon—maximum elevation, water temperature, diagram of levels, imbalance caused by man, lake salinity, decreasing dimensions, pollution a new calamity