Online students' use of virtual reference services /

by Peters, Timothy

Obstetricia y ginecología : costo-beneficio /

by Wildschut, Hajo I. J., Wildschut, Hajo I. J., Weiner, Carl P, Peters, Timothy John 1939-
Published 1999

Bioquímica ilustrada : bioquímica y biología molecular en la era posgenómica /

by Campbell, Peters N.
Published 2005