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Dyfyniad Arddull ChicagoROBERTS, Karlene H. New Directions for Methodology of Social and Behavioralscience: Issues in Aggregation. San Francisco: Jossey-Bass, 1980.
Dyfyniad MLAROBERTS, Karlene H. New Directions for Methodology of Social and Behavioralscience: Issues in Aggregation. Jossey-Bass, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.