Cita APA (7a ed.)

Nuttin, J., & Lens, W. (1985). Future time perspective and motivation: Theory and research method ([Rev. ed.].). University Press, Lawrence Erlbaum.

Cita Chicago Style (17a ed.)

Nuttin, Joseph, y Willy Lens. Future Time Perspective and Motivation: Theory and Research Method. [Rev. ed.]. Leuven : Hillsdale, New Jersey: University Press, Lawrence Erlbaum, 1985.

Cita MLA (9a ed.)

Nuttin, Joseph, y Willy Lens. Future Time Perspective and Motivation: Theory and Research Method. [Rev. ed.]. University Press, Lawrence Erlbaum, 1985.