Benthic Foraminiferal Biostratigraphy of the South Caribbean RegionHans M. Bolli, J. P. Beckmann, J. B. Saunders · First published 1994 · Latest edition 2005Open the Tome
Plankton StatigraphyHans M. Bolli, Saunders, John B., Katharina Perch-Nielsen · First published 1985Open the Tome
Planktonic Foraminifera from the Cretaceous of Trinidad, B. W. IHans M. Bolli · First published 1959Open the Tome
