Butler, G., & Hope, T. (1997). Managing your mind: The mental fitness guide. Oxford University Press.
Cita Chicago Style (17a ed.)Butler, Gillian, y Tony Hope. Managing Your Mind: The Mental Fitness Guide. New York [etc.]: Oxford University Press, 1997.
Cita MLA (9a ed.)Butler, Gillian, y Tony Hope. Managing Your Mind: The Mental Fitness Guide. Oxford University Press, 1997.
Precaución: Estas citas no son 100% exactas.