Materials for a Life of Jacopo da Varagineby Ernest Cushing Richardson;Some Aspects of Cooperative Cataloging. Collected Papers Relating to the Work of the A. L. A. Committee on Bibliographyby Ernest Cushing Richardson;A Union World Catalog of Manuscript Books. Preliminary Studies in Method. I. The World's Collections of Manuscript Books: A Preliminary Surveyby Committee on Bibliography of the American Library Association; Ernest Cushing Richardson;A Union World Catalog of Manuscript Books. Preliminary Studies in Method. II. The Manuscript Book Collections of Spain and Portugalby Committee on Bibliography of the American Library Association; Henry A. Grubbs;A Union World Catalog of Manuscript Books. Preliminary Studies in Method. IV. A Demonstration Experiment with Oriental Manuscripts (Princeton University Arabic Manuscripts. Garrett Manuscripts 1-383)by Committee on Bibliography of the American Library Association; N. A. Faris