Citation

Marcinkowski T, Pukacka-Sokolowska L, Wojciechowski T. Am. Educ. Res. J. 1974; 3(1): 95-100.

Copyright

(Copyright © 1974, American Educational Research Association, Publisher SAGE Publishing)

DOI

unavailable

PMID

4426552

Abstract

[Abstract unavailable]

Language: en