Author: Myers, S. Language: 7 Type: English Pagination: 71-72 Series: 50 Source: Educational Leadership Date of publication: 1993 Place of publication: Publisher: Notes: article
Author: Belov, S. V. Language: Russian Type: article Pagination: 71-72 Series: Vol. 4 Source: IDS Bulletin Date of publication: 1974 Place of publication: Publisher: Notes: Resumé