@inbook{inbooka7346b71,
title   = {Magmatism in eastern Paraguay: occurrence and petrography},
author = {Comin-Chiaramonti, P. and Cundari, A. and De Min, Angelo and Gomes, Celso B. and Velázquez Fernandez, Victor},
year = {1996},
publisher = {EDUSP},
journal   = {Alkaline magmatism in central-eastern Paraguay : relationships with coeval magmatism in Brazil}
}