The Herpetofauna of the Caribbean Islands San Andres and Providencia

by Tamsitt, J. R., Valdivieso, Darío
Published 1963

A review of the immunology of parasitic nematodes

by Valdivieso, Darío, Tamsitt, J. R.
Published 1969

Notas sobre actividades nocturnas y estados de reproducción de algunos Quirópteros de Costa Rica

by Tamsitt, J. R., Valdivieso, Darìo
Published 1961

Bats of the Bogota Savanna, Colombia, with Notes on Altitudinal Distribution of Neotropical Bats

by Tamsitt, J. R., Valdivieso, Darío, Hernández-Camacho, Jorge
Published 1964