Gaya APA
Dufour, R.
(1978).
Tandem: action in interaction / Richard Dufour, Jack Strauss
.
:
National Texbook.
Gaya MLA
Dufour, Richard.
"Tandem: action in interaction / Richard Dufour, Jack Strauss".
:
National Texbook,
1978.
Referensi.