Wu, Liusheng. Gong cheng cai liao shi yan / Wu Liusheng bian zhu. - Chu ban. - [Chongqing] : Guo li bian yi guan : Zheng zhong shu ju yin xing, Mingguo 34 [1945] - 432 p. : ill. ; 21 cm. At head of title: Bu ding da xue yong shu. Includes bibliographical references. LCCN: c 62000839 Subjects--Topical Terms: Materials. LC Class. No.: TA403 / .W8