APA

Bhatnagar R.K, University of Delhi. Faculty of Medical Sciences. Department of Otorhinolaryngology, Dr P C Sagar Supervisor & University of Delhi. Faculty of Medical Sciences. Department of Otorhinolaryngology. (1973). Aetiopathogenesis of secretory otitis media. : .

Chicago

Bhatnagar R.K, University of Delhi. Faculty of Medical Sciences. Department of Otorhinolaryngology, Dr P C Sagar Supervisor and University of Delhi. Faculty of Medical Sciences. Department of Otorhinolaryngology. 1973. Aetiopathogenesis of secretory otitis media. : .

Harvard

Bhatnagar R.K, University of Delhi. Faculty of Medical Sciences. Department of Otorhinolaryngology, Dr P C Sagar Supervisor and University of Delhi. Faculty of Medical Sciences. Department of Otorhinolaryngology. (1973). Aetiopathogenesis of secretory otitis media. : .

MLA

Bhatnagar R.K, University of Delhi. Faculty of Medical Sciences. Department of Otorhinolaryngology, Dr P C Sagar Supervisor and University of Delhi. Faculty of Medical Sciences. Department of Otorhinolaryngology. Aetiopathogenesis of secretory otitis media. : . 1973.