Bordens, K. S., & Abbott, B. B. (1995). Research design and methods: A process approach (3 rd ed.). Mayfield.
Dyfyniad Arddull ChicagoBordens, Kenneth S., and Bruce B. Abbott. Research Design and Methods: A Process Approach. 3 rd ed. London: Mayfield, 1995.
Dyfyniad MLABordens, Kenneth S., and Bruce B. Abbott. Research Design and Methods: A Process Approach. 3 rd ed. Mayfield, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.