Roberts CR99712 Uživatelský manuál stáhnout pdf (Strana 233)

Second edition, 190 pp. 18mo, boards. (New York,

1894 ) net 2 0

=A Treatise on the Comparative Commercial

Values of Gas Coals and Cannels.= By D. A.

GRAHAM. 3 plates, 100 pp. 8vo. (1882 ) 4 6

=The Gas Engineers Laboratory Handbook.= By

J. HORNBY. Third edition, revised, 70 illus. 330

pp. crown 8vo. (1911 ) net 6 0

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