https://catalogue-scientifique.canada.ca/record=3489941~S6*frc
Rechercher Guo jia di zhi zong ju Tianjin di zhi kuang chan yan jiu suo; Rechercher Inner Mongolia (China). Di zhi ju; Rechercher Nan-ching ti chih ku sheng wu yen chiu so
Ti chih chʻu pan she, 1979
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