Ahmad, M., & Roy, R. (1994). Some observations on the breakage of ultrasonic files driven piezoelectrically. Wiley.
Lua i Stíl Chicago (17ú heag.)Ahmad, M., agus R. Roy. Some Observations on the Breakage of Ultrasonic Files Driven Piezoelectrically. Wiley, 1994.
Lua MLA (9ú heag.)Ahmad, M., agus R. Roy. Some Observations on the Breakage of Ultrasonic Files Driven Piezoelectrically. Wiley, 1994.
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