Aspen Systems Corporation. (2015). Techniques in Orthopaedics. Aspen Systems Corporation.
Čikaški stil citiranja (17. izdanje)Aspen Systems Corporation. Techniques in Orthopaedics. Rockville, Md: Aspen Systems Corporation, 2015.
MLA način citiranja (8. izdanje)Aspen Systems Corporation. Techniques in Orthopaedics. Aspen Systems Corporation, 2015.
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