Bei Ning tie lu yan xian jing ji diao cha bao gao
By: Bei Ning tie lu guan li ju jing ji diao cha dui bian
Edition: Qian yin ben
Publisher: [Bei Ning tie lu guan li ju]
Published: 1937
Place of publication: [China]
Language: chi
Notes: Microfilm. v. 1-6. New York, N.Y. : Columbia University Libraries, 1996. 1 microfilm reel ; 35 mm.