Gaya APA
Mantyla, K. (1999).
Interactive distance learning exercises that really work!: turn classroom exercises, into effective and enjoyable, distance learning activities .
Alexandria:
American Social for Training and Development.
Gaya MLA
Mantyla, Karen.
"Interactive distance learning exercises that really work!: turn classroom exercises, into effective and enjoyable, distance learning activities".
Alexandria:
American Social for Training and Development,
1999.
Text.