"harding, d w. "
materials: / d.w. harding - 1 ed. - uk : longmans 1968. - ", 64p.; 21 cm." - longmans' physics materials .
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530. 4 har
materials: / d.w. harding - 1 ed. - uk : longmans 1968. - ", 64p.; 21 cm." - longmans' physics materials .
--
530. 4 har