Educational research : an introduction /

Bibliographic Details
Main Author: Gall, Meredith D., 1942- (συγγραφέας)
Other Authors: Borg, Walter R. (συγγραφέας.), Gall, Joyce P. (συγγραφέας.)
Format: Book
Language:English
Published: White Plains : Longman, c1996.
Edition:6η έκδ.
Subjects:

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