Cita APA (7th ed.)

Ahmad, M., & Roy, R. (1994). Some observations on the breakage of ultrasonic files driven piezoelectrically. Wiley.

Cita Chicago (17th ed.)

Ahmad, M., i R. Roy. Some Observations on the Breakage of Ultrasonic Files Driven Piezoelectrically. Wiley, 1994.

Cita MLA (9th ed.)

Ahmad, M., i R. Roy. Some Observations on the Breakage of Ultrasonic Files Driven Piezoelectrically. Wiley, 1994.

Atenció: Aquestes cites poden no estar 100% correctes.