Gaya APA
Human development and learning. (1956).
New York:
[s.n.].
Gaya Chicago
Human development and learning.
.
New York:
[s.n.],
1956.
Text.
Gaya MLA
Human development and learning.
.
New York:
[s.n.],
1956.
Text.
Gaya Turabian
Human development and learning.
New York:
[s.n.],
1956.
Print.