@book{85154,
	author = {Purkayastha, Makhan Lal and Dr. H. Janjappa},
	title = {Synthetic studies on heterocycles using oxoketene-S, S-, N- and O.S-acetals},
	publisher = {NEHU, Dept of Chemistry},
	year = {1989},
	address = {Shillong},
	edition = {NEHU}
}