Hoffer, M. M. Symposium on Orthopedic surgery in the mentally retarded.
Čikaški stil citiranja (17. izdanje)Hoffer, M. Mark. Symposium on Orthopedic Surgery in the Mentally Retarded.
MLA način citiranja (8. izdanje)Hoffer, M. Mark. Symposium on Orthopedic Surgery in the Mentally Retarded.
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