Gaya APA
DEVER, R, B., KNAPPEZYK, D, R. (1997).
Teaching persons with mental retardation .
Madison, W.I.:
Brown & Benchmark.
Gaya MLA
DEVER, Richard, B., KNAPPEZYK, Dennis, R.
"Teaching persons with mental retardation".
Madison, W.I.:
Brown & Benchmark,
1997.
Buku.