Heilongjiang sheng er tong wen ti yan jiu
By: Heilongjiang sheng er tong qing kuang chou yang diao cha ban gong shi bian
Edition: Di 1 ban
Publisher: Zhongguo tong ji chu ban she
Published: 1990
Place of publication: [Beijing]
Language: chi
Number of pages: 242
Subjects: Children
Notes: Includes bibliographical references.