Cita APA (7a ed.)

Skinner, B. F. (1987). Upon further reflection. Prentice-Hall.

Cita Chicago Style (17a ed.)

Skinner, B. F. Upon Further Reflection. Englewood Cliffs, New Jersey: Prentice-Hall, 1987.

Cita MLA (9a ed.)

Skinner, B. F. Upon Further Reflection. Prentice-Hall, 1987.