Kuwayama, 4. Y. (1973). Trademarks and symbols. New York : Van Nostrand Reinhold.
Chicago-čujuhus (17. p.)Kuwayama, 419806 Yasaburo. Trademarks and Symbols. New York : Van Nostrand Reinhold, 1973.
MLA-čujuhus (9. p.)Kuwayama, 419806 Yasaburo. Trademarks and Symbols. New York : Van Nostrand Reinhold, 1973.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.