si chuan sheng lei ma e pin diao cha ji.di yi hao,zhong guo xi bu ke xu eyuan te kan 四川省雷马峨屏调查记.第一号,中国西部科学院特刊 Chang, Longqing 常隆庆 creator text book zhong guo xi bu ke xue yuan 中国西部科学院 1924 1924
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CHI ecological survey https://www.biodiversitylibrary.org/bibliography/52453