McGuigan, F. J. (1993). Experimental psychology: Methods of research (6th ed.). Prentice Hall.

McGuigan, Frank J. Experimental Psychology: Methods of Research. 6th ed. Englewood Cliffs, NJ: Prentice Hall, 1993.

McGuigan, Frank J. Experimental Psychology: Methods of Research. 6th ed. Prentice Hall, 1993.