TY  - BOOK
T1  - The biology of mental defect
A1  - Penrose, Lionel Sharples
LA  - English
PP  - New York
PB  - Grune & Stratton
YR  - 1963
ED  - [2nd rev. ed.].
UL  - https://tuklas.up.edu.ph/Record/UP-99796217601344152
OP  - 374
CN  - RB 155 P39 1963
KW  - Heredity of disease.
KW  - Mental deficiency.
ER  -