Berggren, W. A., Olsson, D. K., Silva, I. P., Berggren, W., & Olsson, D. (2006). Taxonomy, biostratigraphy and phylogenetic affinities of Eocene Astrorotalia, Igorina, Planorotalites, and problematica (Praemurica? lozanoi). Cushman Foundation for Foraminiferal Research.
Chicago Style (17th ed.) CitationBerggren, W. A., D. K. Olsson, I. Premoli Silva, W.A Berggren, and D.K Olsson. Taxonomy, Biostratigraphy and Phylogenetic Affinities of Eocene Astrorotalia, Igorina, Planorotalites, and Problematica (Praemurica? Lozanoi). Cushman Foundation for Foraminiferal Research, 2006.
MLA (9th ed.) CitationBerggren, W. A., et al. Taxonomy, Biostratigraphy and Phylogenetic Affinities of Eocene Astrorotalia, Igorina, Planorotalites, and Problematica (Praemurica? Lozanoi). Cushman Foundation for Foraminiferal Research, 2006.