Gaya APA
Dreikurs, R.
(1964).
Children: the challenge / Rudolf Dreikurs With Vicki Soltz
.
:
Hawthorn Books.
Gaya MLA
Dreikurs, Rudolf.
"Children: the challenge / Rudolf Dreikurs With Vicki Soltz".
:
Hawthorn Books,
1964.
Referensi.