1. Quaternary palynological studies in the Amazon Basin;Absy,1982
2. Palynology of Amazonia: the history of forests as revealed by the palynological record;Absy,1985
3. UTh ages obtained by mass spectrometry in coral from Barbados: sea-level during the past 130,000 years;Bard;Nature,1990
4. Tectonic evolution of the central part of the Venezuelan coast ranges;Bell;Geological Society of America Memoirs,1971
5. Geology and paleontology of Lake Tacarigua, Venezuela;Berry,1939