Zi ran jiao xue jing yan dian di
By: Liu Mogeng zhu
Series: Beijing yu cai xiao xue ge ke jiao cai jiao fa jing yan -- di 3 ji; Beijing yu cai xiao xue ge ke jiao cai jiao fa jing yan -- di 3 ji.
Publisher: Zhonghua shu ju
Published: 1953
Place of publication: Beijing
Language: chi
Number of pages: 102
Subjects: Science; Study and teaching; Nature study
Notes: Appendix: p. 90-102.