APA Style
HARTLEY, Ruth E.. (1952).
Understanding Childrens Play .
London:
Columbia University Press.
Chicago Style
HARTLEY, Ruth E..
Understanding Childrens Play.
London:
Columbia University Press,
1952.
Text.
MLA Style
HARTLEY, Ruth E..
Understanding Childrens Play.
London:
Columbia University Press,
1952.
Text.
Turabian Style
HARTLEY, Ruth E..
Understanding Childrens Play.
London:
Columbia University Press,
1952.
Print.