"evans, e j. "
sound absorbing materials: / e.j. evans - 1 ed. - uk : h.m.s.o. 1960. - ", 49p.; 24 cm."
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693. 834 eva
sound absorbing materials: / e.j. evans - 1 ed. - uk : h.m.s.o. 1960. - ", 49p.; 24 cm."
--
693. 834 eva