Não informado. (1948). DSIR information series. New Zealand Department of Scientific and Industrial Research.
Chicago-referens (17:e uppl.)Não informado. DSIR Information Series. Wellington: New Zealand Department of Scientific and Industrial Research, 1948.
MLA-referens (8:e uppl.)Não informado. DSIR Information Series. New Zealand Department of Scientific and Industrial Research, 1948.
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