APA
Ishwar Singh, University of Delhi. Faculty of Science. Department of chemistry, Prof R P Singh Supervisor & University of Delhi. Faculty of Science. Department of chemistry. (1977). Analytical investigation On heterocyclic azo dyes. : .
Chicago
Ishwar Singh, University of Delhi. Faculty of Science. Department of chemistry, Prof R P Singh Supervisor and University of Delhi. Faculty of Science. Department of chemistry. 1977. Analytical investigation On heterocyclic azo dyes. : .
Harvard
Ishwar Singh, University of Delhi. Faculty of Science. Department of chemistry, Prof R P Singh Supervisor and University of Delhi. Faculty of Science. Department of chemistry. (1977). Analytical investigation On heterocyclic azo dyes. : .
MLA
Ishwar Singh, University of Delhi. Faculty of Science. Department of chemistry, Prof R P Singh Supervisor and University of Delhi. Faculty of Science. Department of chemistry. Analytical investigation On heterocyclic azo dyes. : . 1977.
