TY  - BOOK
AU  - Wilt, Fred H.
AU  - Hake, Sarah.
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 393974308
SN  - 2
PY  - 2004///];copyright 200446
CY  - New York
PB  - W.W. Norton
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Developmental biology
N1  - Includes bibliographical references and indexes; 5
ER  -