@misc{miscb953664e,
title   = {A geochronological comparison of West African and South American basements},
author = {Melcher, Geraldo Conrado and Cordani, Umberto G. and Isotta, Carlos Augusto Luciano and Hurley, P M},
year = {1972},
publisher = {The Union},
booktitle   = {Continental Drift Emphasizing the History of the South Atlantic Area}
}