Aspen Systems Corporation. (2015). Techniques in Orthopaedics. Aspen Systems Corporation.
Chicago-viite (17. p.)Aspen Systems Corporation. Techniques in Orthopaedics. Rockville, Md: Aspen Systems Corporation, 2015.
MLA-viite (8. p.)Aspen Systems Corporation. Techniques in Orthopaedics. Aspen Systems Corporation, 2015.
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