For gas engineering files and libraries
Subtitle: a modern system of classification
By: by Sydney Shire ...
Contributors: Peoples Gas Light and Coke Company.
Publisher: Printed by the Peoples gas light and coke company
Published: 1942
Place of publication: Chicago, Ill
Language: eng
Subjects: Classification -- Books -- Engineering.; Classification -- Books -- Gas manufacture and works.
Notes: Loose-leaf; reproduced from type-written copy.