Draftsman's blue book of engineering data and reference sheets
Subtitle: related trade and related technical material for instructors
By: by C. L. Crittenden, E. S. Crocker and Walter Hall.
Contributors: Crocker, Elmer S., joint author.; Hall, Walter, joint author.
Published: 1931
Place of publication: [Los Angeles
Language: eng
Number of pages: 115
Subjects: Drawing-room practice.; Mechanical drawing.