00297nam a2200109Ia 4500008004100000040001100041100002000052245005200072260004000124300001300164300001000177251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aM. V. Edds, Jr. 0aDevelopmental BiologybAn International Journal  cMay, 1971bAcademic PressaNew York  aP. 1-757  bV. 25