APA
                Mehrotra Preeti, University of Delhi. Faculty of Medical Sciences. Department of Pediatrics, Dr. Anju Seth Gu, Dr. R. K. Marwaha Gu, Dr. S. Aneja Gu & University of Delhi. Faculty of Medical Sciences. Department of Pediatrics. (2007). Etiology of symptomatic hypocalcaemia during infancy with special reference to the role of vitamin d deficiency. : .
                
                Chicago
                Mehrotra Preeti, University of Delhi. Faculty of Medical Sciences. Department of Pediatrics, Dr. Anju Seth Gu, Dr. R. K. Marwaha Gu, Dr. S. Aneja Gu and University of Delhi. Faculty of Medical Sciences. Department of Pediatrics. 2007. Etiology of symptomatic hypocalcaemia during infancy with special reference to the role of vitamin d deficiency. : .
                
                Harvard
                Mehrotra Preeti, University of Delhi. Faculty of Medical Sciences. Department of Pediatrics, Dr. Anju Seth Gu, Dr. R. K. Marwaha Gu, Dr. S. Aneja Gu and University of Delhi. Faculty of Medical Sciences. Department of Pediatrics. (2007). Etiology of symptomatic hypocalcaemia during infancy with special reference to the role of vitamin d deficiency. : .
                
                MLA
                Mehrotra Preeti, University of Delhi. Faculty of Medical Sciences. Department of Pediatrics, Dr. Anju Seth Gu, Dr. R. K. Marwaha Gu, Dr. S. Aneja Gu and University of Delhi. Faculty of Medical Sciences. Department of Pediatrics. Etiology of symptomatic hypocalcaemia during infancy with special reference to the role of vitamin d deficiency. : . 2007.