Dang ni bu ru ke xue zhi men
By: Ye Yonglie zhu.
Edition: Di 1 ban
Publisher: Tianjin ren min chu ban she; Xin hua shu dian Tianjin fa xing suo fa xing
Published: 1985
Place of publication: Tianjin Shi
Language: chi
Number of pages: 126
Subjects: Science -- Moral and ethical aspects.