APA (7th ed.) Citation

Ong, A. D., & Dulmen, M. H. M. v. (2007). Oxford handbook of methods in positive psychology. Oxford University Press.

Chicago Style (17th ed.) Citation

Ong, Anthony D., and Manfred H. M. van Dulmen. Oxford Handbook of Methods in Positive Psychology. Oxford [etc.]: Oxford University Press, 2007.

MLA (9th ed.) Citation

Ong, Anthony D., and Manfred H. M. van Dulmen. Oxford Handbook of Methods in Positive Psychology. Oxford University Press, 2007.