| 一般注記 |
Title from caption Title varies slightly: Industrial and engineering chemistry, -v. 17, no. 24 (Dec. 20, 1939) Numbering appeared from v. 1 , no. 13 (July 10, 1923) Vol. 17, no. 24 (Dec. 20, 1939) called also v. 31, consecutive no. 48 Place of publication varies: Easton, Pa., -v. 17, no. 24 (Dec. 20, 1939) |