"norman, j t. "
modern plastics for secondary schools: / j.t. norman - 1 ed. - uk : macmillan 1951. - "iv, 44p.; 24 cm."
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745. 57 nor
modern plastics for secondary schools: / j.t. norman - 1 ed. - uk : macmillan 1951. - "iv, 44p.; 24 cm."
--
745. 57 nor