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- 75551728 contributor B2742265.
- 75551728 created "1974.".
- 75551728 date "1974".
- 75551728 date "1974.".
- 75551728 dateCopyrighted "1974.".
- 75551728 description "Bibliography: p. 227-[234]".
- 75551728 extent "233, [1] p. :".
- 75551728 issued "1974".
- 75551728 issued "1974.".
- 75551728 language "rum".
- 75551728 subject "Q175 .D845".
- 75551728 subject "Research.".
- 75551728 subject "Science Methodology.".
- 75551728 title "Trepte spre știință : elemente de propedeutică a cercetării științifice / D. Dumitrașcu.".
- 75551728 type "text".