Modified Dewey Decimal classification
By: ITT Federal Laboratories, Technical Library ; prepared by Ellis Mount.
Edition: Rev. [ed.].
Publisher: The Library
Published: 1961
Place of publication: Nutley, NJ
Language: eng
Number of pages: 28
Notes: Includes classifications for 530, Physics; 622-623, Electrical engineering and electronics; 624, Controls, data processing, applied acoustics, navigation; 629, Aviation, astronautics.