Template:Ref-Krafka1941
From Embryology
Krafka J. The Torpin ovum, a presomite human embryo. (1941) Contrib. Embryol., Carnegie Inst. Wash. Publ. 525, 29: 167-193.
Krafka J. The Torpin ovum, a presomite human embryo. (1941) Contrib. Embryol., Carnegie Inst. Wash. Publ. 525, 29: 167-193.