@book{1899,
	author = {Bahl, Arun.  and Bahl, B. S. },
	title = {Advanced organic chemistry /},
	publisher = {S. Chand,},
	year = {c1977.[Reprinted 2005, 2003, 2000, 1999 ]},
	address = {New Delhi :},
	note = {Includes index.}
}