Dyfyniad APA

National Productivity Council. (1963). Report no.28 glass industry in Britan and U.S.A. N.P.C.

Dyfyniad Arddull Chicago

National Productivity Council. Report No.28 Glass Industry in Britan and U.S.A. N.P.C, 1963.

Dyfyniad MLA

National Productivity Council. Report No.28 Glass Industry in Britan and U.S.A. N.P.C, 1963.

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