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- 65031691 contributor B1643292.
- 65031691 created "1963.".
- 65031691 date "1963".
- 65031691 date "1963.".
- 65031691 dateCopyrighted "1963.".
- 65031691 extent "326 p.".
- 65031691 issued "1963".
- 65031691 issued "1963.".
- 65031691 language "pol".
- 65031691 publisher "Warszawa, Państwowe Zaklady Wydawn. Szkolnych,".
- 65031691 subject "Education Experimental methods.".
- 65031691 subject "LB1026 .O5".
- 65031691 title "Praca eksperymentalna w szkole. Pod red. Wincentego Okonia.".
- 65031691 type "text".