22. The Alphabet and Elements of Lettering. F. W. Goudy (University of California Press, 1942)
23. Alphabets, Ancient and Modern. J. B. Russell (Padell Book Co., New York, 1945)
24. Lettering from A to Z. C. P. Hornung (Win. Penn Publishing Corporation, New York, 1954)
25. Treasury of Alphabets and Lettering. J. Tschichold (Reinhold Publishing Corporation, New York, 1966)
26. Japanese Grammar Self-Taught. H. J. Weintz (E. Marlborough & Co., London, 1907)
27. New Critical Japanese-English Dictionary. (Tokyo Government Bookstore Publication, 1921)
28. Japanese Conversation Grammar. O. Vaccari and E. E. Vaccari (Vaccari's Language Institute, Tokyo, 1965)
29. English-Japanese Conversation-Dictionary. O. Vaccari and E. E. Yaccari (Vaccari's Language Institute, Tokyo, 1963)
30. Pictorial Chinese—Japanese Characters. O. Vaccari and E. E. Vaccari (Vaccari's Language Institute, Tokyo, 1964)
31. A. B. C. Japanese-English Dictionary, Parts I and II. O. Yaccari and E. E. Vaccari (Yaccari's Language Institute, Tokyo, 1952)
32. The Modern Reader's Japanese-English Character Dictionary. A. N. Nelson (Charles E. Tuttle Company, Rutland, Vermont, 1962)
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