Slack, J. M. W. From egg to embryo : regional specification in early development / J. M. W. Slack. - Cambridge : Cambridge Univ. Press, 1991. - xix, 328 p. ; ill. ; 23 cm. Includes bibliographical references and index. ISBN: 0521409438 Subjects--Topical Terms: Fetal Development Embryo National Library of Medicine Call No.: QS 604 / Sl11f 1991