Helson, H. (1964). Adaptation-level theory: An experimental and systematic approach to behavior. Harper & Row.
Citação norma ChicagoHelson, Harry. Adaptation-level Theory: An Experimental and Systematic Approach to Behavior. New York: Harper & Row, 1964.
Citação norma MLAHelson, Harry. Adaptation-level Theory: An Experimental and Systematic Approach to Behavior. Harper & Row, 1964.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.