Cita APA

Kempfer, H. (1994). How to reduce dropouts in distance education. San José, Costa Rica: UNED.

Citación estilo Chicago

Kempfer, Homer. How to Reduce Dropouts in Distance Education. San José, Costa Rica: UNED, 1994.

Cita MLA

Kempfer, Homer. How to Reduce Dropouts in Distance Education. San José, Costa Rica: UNED, 1994.

Precaución: Estas citas no son 100% exactas.