APA সাইটেশন

Leyland, M., & McCloy, R. (1993). Surgical face masks: Protection of self or patient? Royal College of Surgeons of England.

শিকাগো স্টাইলে সাইটেশন

Leyland, M., এবং R. McCloy. Surgical Face Masks: Protection of Self or Patient? Royal College of Surgeons of England, 1993.

এমএলএ সাইটেশন

Leyland, M., এবং R. McCloy. Surgical Face Masks: Protection of Self or Patient? Royal College of Surgeons of England, 1993.