Gaya APA
Nelsen, Jane. (1987).
Positive Discipline .
New York:
Ballantine Books.
Gaya Chicago
Nelsen, Jane.
Positive Discipline.
New York:
Ballantine Books,
1987.
Text Book.
Gaya MLA
Nelsen, Jane.
Positive Discipline.
New York:
Ballantine Books,
1987.
Text Book.
Gaya Turabian
Nelsen, Jane.
Positive Discipline.
New York:
Ballantine Books,
1987.
Text Book.