Behrens, B. J., & Beinert, H. (2014). Physical agents: Theory and practice (Third edition.). F. A. Davis Company.
Čikaški stil citiranja (17. izdanje)Behrens, Barbara J., i Holly Beinert. Physical Agents: Theory and Practice. Third edition. Philadelphia, Pennsylvania: F. A. Davis Company, 2014.
MLA način citiranja (9. izdanje)Behrens, Barbara J., i Holly Beinert. Physical Agents: Theory and Practice. Third edition. F. A. Davis Company, 2014.
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