@book{25159,
	author = {Verma, P. S and Agarwal, V.K. },
	title = {Cytology: cell biology and molecular biology/by P.S. Verma and V.K. Agarwal},
	publisher = {S. Chand & Co.},
	year = {1998.},
	address = {New Delhi:},
	edition = {1st.ed.}
}