Gaya APA
Ray, W, J., Ravizza, R. (1985).
Methods toward a science of behavior and experience .
Belmont, Calif:
Wadworth Pu. Co.
Gaya MLA
Ray, William, J., Ravizza, Richard.
"Methods toward a science of behavior and experience".
Belmont, Calif:
Wadworth Pu. Co,
1985.
Text.