AAlgae as rock buildersAlgae as rock buildersde J. Harlan JohnsonEdiciones (1)Algae as rock builders (1936)inglésMás obras de J. Harlan JohnsonEEocene algae from Ishigaki-shima, Ryūkyū-rettōEocene algae from Ishigaki-shima, Ryūkyū-rettō1964LLimestone-building algae and algal limestonesLimestone-building algae and algal limestones1961AA résumé of the Paleozoic stratigraphy of Colorado
BBibliography of Colorado maps pub. by the state and federal Bibliography of Colorado maps pub. by the state and federal governments
BBibliography of geophysical principles, apparatus and methodBibliography of geophysical principles, apparatus and methods applied to prospecting