Before you begin your research, you might want to check the following points for basics:
Japanese language materials at UC Berkeley Library can be searched either using original Japanese scripts (ひらがな, カタカナ, 漢字) or the modified Hepburn Romanization (transliteration) system. The modified Hepburn Romanization system is slightly different from the official Romanzation system (訓令式) currently used by Japanese goverments. The following links offer information about the modified Hepburn Romanization system:
Japanese Romanization Table: A table of Japanese alphabets (ひらがな) and equivalent Romanized letters.
LC (Library of Congress) and ALA (American Library Association) Romanization Table for Japanese:
Detailed explanation of the guidelines that many American libraries follow when romanizing Japanese materials
Note that when searching OskiCat, if you use Japanese scripts, you might miss some records, because some records do not have information in Japanse.
When searching using Romanization, space after each word, including prepositional word. Example: "Nihon kokka no keisei."
Reference managers (also called citation managers or bibliographic management software) offer a way to save, organize and manage references. Many work with word processing software to format in-text citations and bibliographies for papers and theses, allow you to share references, and enable you to attach or link PDFs to a citation record.
Wikipedia comparison of reference management software