books.google.fr - Includes Part 1A: Books, Part 1B: Pamphlets, Serials and Contributions to Periodicals and Part 2: Periodicals. (Part 2: Periodicals incorporates Part 2, Volume 41, 1946, New Series)...https://books.google.fr/books/about/Catalog_of_Copyright_Entries_Third_Serie.html?hl=fr&id=QD4hAQAAIAAJ&q=coo+coo&utm_source=gb-gplus-shareCatalog of Copyright Entries. Third Series
