Ellena A. Barela Operating room technique: instructional manual/ Ellena A. Barela - Quezon City : Busybook Distributors, c2003 - 139 p. : ill. ; 22 cm. include index. ISBN: 971-770-209-2. Subjects--Topical Terms: Surgery. Dewey Class. No.: Circ. 617 O62 2003