Wesley R. Hurt, Thomas van der Hammen, Gonzalo Correal Urrego
Published for Indiana University Museum by Indiana University Research Center for Language and Semiotic Studiesc1977The Quaternary of Colombia = El Cuaternario de Colombia
special voume 2 , Occasional papers and monographs / Indiana University Museum
no. 2
Published for Indiana University Museum by Indiana University Research Center for the Language Sciences1974Occasional papers and monographs / Indiana University Museum
no. 1