TY  - BOOK
AU  - Saunders,Jr,John W.
TI  - Patterns and principles of animal development / 
T2  - The Macmillan Biology
U1  - 591.3 
PY  - 1970///
CY  - London
PB  - Macmillan, 
KW  - Animals
KW  - Genes
KW  - Growth
KW  - Genetic control
KW  - Eggs
KW  - Animal anatomy
N1  - Includes appendices and index
ER  -