APA Style
Wyckoff, J. ().
Discipline without shouting or spanking :practical solutions to the most common preschool behavior problems .
:
New York: Simon and Schuster, 1984.
MLA Style
Wyckoff, Jerry,.
"Discipline without shouting or spanking :practical solutions to the most common preschool behavior problems".
:
New York: Simon and Schuster, 1984,
.
BOOKS.