Annals of the Tohoku Geographical Association
Online ISSN : 1884-1244
Print ISSN : 0387-2777
ISSN-L : 0387-2777
The Diffusion Process of the First Filial Silkworm in Japan (1915-1921)
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1977 Volume 29 Issue 2 Pages 83-91

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[in Japanese]
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© The Tohoku Geographical Asocciation
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