Ngā kupu hautoa kōpae

Tohutoro APA (7th ed.)
(1921). Postal map of China. Department of the Directorate General of Posts.
Tohutoru Kātū Chicago (17th ed.)
Postal Map of China. Department of the Directorate General of Posts, 1921.
Tohutoro MLA (9th ed.)
Postal Map of China. Department of the Directorate General of Posts, 1921.
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