Cita APA (7th ed.)
Kim, S. H. (1990). Essence of creativity: A guide to tackling difficult problems. Oxford University Press.
Cita Chicago (17th ed.)
Kim, Steven H. Essence of Creativity: A Guide to Tackling Difficult Problems. New York: Oxford University Press, 1990.
Cita MLA (9th ed.)
Kim, Steven H. Essence of Creativity: A Guide to Tackling Difficult Problems. Oxford University Press, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.