Rydge's data trend EDP manual.

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Bibliographic Details
Previous Title:Rydge's E.D.P. manual
Format: Serial
Language:English
Published: Sydney, N.S.W : Rydge Publications Pty. Ltd., 1968-1983.
Subjects:
Description
Published:14th ed.(1981)-
Item Description:Description based on: 14th ed. (1981).
Physical Description:v. ; 28 cm.
ISSN:0311-2578