李開正

[NT 60487] Overview

[NT 60478] Works:	2 [NT 60520] works in 2 [NT 60521] publications in 1 [NT 60522] languages

[NT 60480] Titles

新式珠算 [NT 59711] by: 李開正 ([NT 1579] Language materials, printed) , [著]

新編珠算大全 [NT 59711] by: 李開正 ([NT 1579] Language materials, printed) , [著]