1. 各種的形體 / 何挺然, 宗亮寰編. Ge zhong de xing ti / He Tingran, Zong Lianghuan bian. You tong wen ku. di 1 ji, Suan shu lei ; 79., You tong wen ku. di 1 ji, Suan shu lei ; 79 He, Tingran [Browse]何挺然 [Browse] Shanghai : Shang wu yin shu guan fa xing, Minguo 24 nian 4 yue [April 1935]上海 : 商務印書館發行, 民國24年四月 [April 1935] Book Loading...Special Collections - Cotsen Children's Library » 15827 Pams / NR / Chinese / Box 8
2. 各種的形體 / 何挺然, 宗亮寰編. Ge zhong de xing ti / He Tingran, Zong Lianghuan bian. You tong wen ku. di 1 ji, Suan shu lei ; 79., You tong wen ku. di 1 ji, Suan shu lei ; 79 He, Tingran [Browse]何挺然 [Browse] Shanghai : Shang wu yin shu guan fa xing, Minguo 24 nian 1 yue [January 1935]上海 : 商務印書館發行, 民國24年1月 [January 1935] Book Loading...Special Collections - Cotsen Children's Library » 94416748 B-000857
3. 奇妙的加法 / 宗亮寰編. Qi miao de jia fa / Zong Lianghuan bian. You tong wen ku. di 1 ji, Suan shu lei ; 80., You tong wen ku. di 1 ji, Suan shu lei ; 80 Zong, Lianghuan, 1895-1969 [Browse]宗亮寰, 1895-1969 [Browse] Shanghai : Shang wu yin shu guan fa xing, Minguo 23 [1934]上海 : 商務印書館發行, 民國23 [1934] Book Loading...Special Collections - Cotsen Children's Library » 94416755 B-000857
4. 算算看. 上 / 許觀光編. Suan suan kan. shang / Xu Guanguang bian. You tong wen ku. di 1 ji, Suan shu lei ; 77., You tong wen ku. di 1 ji, Suan shu lei ; 77 Xu, Guanguang [Browse]許觀光 [Browse] Shanghai : Shang wu yin shu guan fa xing, Minguo 23 [1934]上海 : 商務印書館發行, 民國23 [1934] Book Loading...Special Collections - Cotsen Children's Library » 94416730 B-000857