怎样保护牙齿

Saved in:
Bibliographic Details
Main Authors: 张乐天 (张乐天等撰)
Published: 中华全国科学技术普及协会
Publisher Address: 北京
Publication Dates: 1955
Literature type: Book
Language: Chinese
Subjects:
Carrier Form: 52页: 图 ; 19cm
Index Number: R780
CLC: R780.1
Call Number: 416.91/1221