00291nam a2200109Ia 4500008004100000040001100041100002000052245005100072260003500123300001300158300001000171251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aM. V. Edds, Jr. 0aDevelopmental Biology An International Journal  c1967bAcademic PressaNew York  aP. 1-602  bV. 16