Ballard, D. W., Promisel, N. E., & Clauser, H. R. (1970). Federation of materials societies: Ad Hoc Task Group on national materials policy study. USA: Ad Hoc Task Group.
Παραπομπή Chicago StyleBallard, D. W., N. E. Promisel, and H. R. Clauser. Federation of Materials Societies: Ad Hoc Task Group On National Materials Policy Study. USA: Ad Hoc Task Group, 1970.
Παραπομπή MLABallard, D. W., N. E. Promisel, and H. R. Clauser. Federation of Materials Societies: Ad Hoc Task Group On National Materials Policy Study. USA: Ad Hoc Task Group, 1970.
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