Penrose, L. S. 1898-1972.
The biology of mental defect / L.S. Penrose. With a pref. by J.B.S. Haldane. Completely rev. with the assistance of J.M. Berg and Helen Lang-Brown. - [3d rev. and reset ed.] - London : Sidgwick and Jackson, c1972. - xxiv, 374 p. : illus. ; 23 cm.
Bibliography: p. 297-338.
0283352655
65077467
GB63-13738
Medical genetics.
Mental retardation.
RC570 / .P47 1963
616.8 / PEB
The biology of mental defect / L.S. Penrose. With a pref. by J.B.S. Haldane. Completely rev. with the assistance of J.M. Berg and Helen Lang-Brown. - [3d rev. and reset ed.] - London : Sidgwick and Jackson, c1972. - xxiv, 374 p. : illus. ; 23 cm.
Bibliography: p. 297-338.
0283352655
65077467
GB63-13738
Medical genetics.
Mental retardation.
RC570 / .P47 1963
616.8 / PEB