The theory of functions of a real variable and the theory of Fourier’s series, by E. W. Hobson .. Q Science
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Chemische Untersuchungsmethoden für Eisenhütten und deren Nebenbetriebe, eine Sammlung praktisch erprobter Arbeitsverfahren Q Science
Catalogue of meteorological satellite data. TIROS VII television cloud photography / U.S. Department of Commerce, Weather Bureau Q Science
