Não informado. (1948). DSIR information series. New Zealand Department of Scientific and Industrial Research.
Citace podle Chicago (17th ed.)Não informado. DSIR Information Series. Wellington: New Zealand Department of Scientific and Industrial Research, 1948.
Citace podle MLA (8th ed.)Não informado. DSIR Information Series. New Zealand Department of Scientific and Industrial Research, 1948.
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