Edmonds, W. Alex (2013). An applied reference guide to research designs : quantitative, qualitative, and mixed methods . Sage Pub..
Edmonds, W. Alex An applied reference guide to research designs : quantitative, qualitative, and mixed methods . Sage Pub., 2013.
Edmonds, W. Alex, "An applied reference guide to research designs : quantitative, qualitative, and mixed methods ," Sage Pub., 2013.