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1by Porte, R. T. (Roy Trewin), 1876-### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1924Salt Lake City, Utah, Porte publishing company [c1924]4 p. ̋., iii-vi p., 1 ̋., 159 p. incl. forms. diagr. 19 cm. -
2by Porte, Roy Trewin### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1920Salt Lake City, Utah, Porte Pub. Co., c1920.vi, 94 p. incl. illus. forms. diagr. 20 cm.