Vogt, W. P. (2012). When to use what research design. New York: Guilford Press.
Chicago Style CitationVogt, W. Paul. When to Use What Research Design. New York: Guilford Press, 2012.
Cita MLAVogt, W. Paul. When to Use What Research Design. New York: Guilford Press, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.