Hang kong fa zhi shi
By: Xu Zhenyi zhu
Edition: Di 1 ban
Series: Fa xue zhi shi cong shu
Publisher: Fa lü chu ban she; Xin hua shu dian fa xing
Published: 1985
Place of publication: [Peking]
Language: chi
Number of pages: 124
Subjects: Aeronautics; Law and legislation