ROBERTS, K. H. (1980). New directions for methodology of social and behavioralscience: Issues in aggregation. Jossey-Bass.
Čikaški stil citiranja (17. izdanje)ROBERTS, Karlene H. New Directions for Methodology of Social and Behavioralscience: Issues in Aggregation. San Francisco: Jossey-Bass, 1980.
MLA način citiranja (9. izdanje)ROBERTS, Karlene H. New Directions for Methodology of Social and Behavioralscience: Issues in Aggregation. Jossey-Bass, 1980.
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