The Geological History of the Isthmus of Panama and Portions of Costa Rica. : Based upon a Reconnoissance made for Alexander Agassiz - Hill, Robert T.; Dall, William H.; Bagg, R. M.; Vaughan, T.W.; Wolff, J.E.; Turner, H.W; Sjôgren, Ahe; Agassiz, Alexander (Cambridge, Mass., U.S.A. : Printed for the Museum, 1898)
Keywords: GEOLOGÍA; GEOGRAFÍA HISTÓRICA; HISTORIA; PANAMÁ; COSTA RICA