TY  - BOOK
AU  - Spratt,Nelson T.
TI  - Developmental biology
SN  - 053400010X
AV  - QH491 .S67
U1  - 574.3 
PY  - 1971///]
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  - Developmental Biology
KW  - Local
N1  - Includes bibliographies
ER  -