Παραπομπή APA

Hatchard, D. H. (1980). theory problem in educational administration. Institute for higher education.

Παραπομπή Chicago Style

Hatchard, D H. Theory Problem in Educational Administration. Armidale: Institute for higher education, 1980.

Παραπομπή MLA

Hatchard, D H. Theory Problem in Educational Administration. Institute for higher education, 1980.