Cita APA (7a ed.)

(1993). Some Psychological Aspects of Distance Education Rudolf Schuemer. [microform].

Cita Chicago Style (17a ed.)

Some Psychological Aspects of Distance Education Rudolf Schuemer. [microform]. 1993.

Cita MLA (9a ed.)

Some Psychological Aspects of Distance Education Rudolf Schuemer. [microform]. 1993.

Precaución: Estas citas no son 100% exactas.