An assessment of the potential of the barra honda limestone, Guanacaste province, Costa Rica /

por Mathers, Stephen J.

Results of an initial exploration programme for bentonitic clays in Costa Rica /

por Mathers, Stephen J.

Detailed investigations of selected Costa Rican diatomites /

por Mathers, Stephen J.

Los minerales industriales no-metalicos de Costa Rica /

por Berrange, Jevan P., Berrange, Jevan P., Mathers, Stephen J.
Publicado 1990

The non-metallic industrial minerals and rocks of Costa Rica /

por Berrange, Jevan P.