Essential molecular biology : a practical approach : Vol. 1 / T.A. Brown. Brown, T. A. (Terence A.) Molecular cloning. Recombinant DNA. QH442.2 .E77 2000 574.88 21 ESS Includes bibliographical references and indexes. Oxford : Oxford University Press, 2000. 2000. 2000 Text v. : eng The Practical approach series