Dyfyniad APA

Helson, H. (1964). Adaptation-level theory: An experimental and systematic approach to behavior. Harper & Row.

Dyfyniad Arddull Chicago

Helson, Harry. Adaptation-level Theory: An Experimental and Systematic Approach to Behavior. New York: Harper & Row, 1964.

Dyfyniad MLA

Helson, Harry. Adaptation-level Theory: An Experimental and Systematic Approach to Behavior. Harper & Row, 1964.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.