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1by Arens, Fritz### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1911Mainz, J. Falk III. Söhne, 1911.viii, 70 p., 1 l. 8vo. -
2by Arens, Fritz### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1938Würzburg, Buchdruckerei R. Mayr, 1938.2 p. l., 116 p., 1 ̋. illus. (plans) 21 cm.