Praca eksperymentalna w szkole.
By: Pod red. Wincentego Okonia.
Edition: [Wyd. 1.]
Publisher: Państwowe Zaklady Wydawn. Szkolnych
Published: 1963
Place of publication: Warszawa
Language: pol
Number of pages: 326
Subjects: Education -- Experimental methods.
Notes: At head of title: Instytut Pedagogiki.