Template:Ref-Ramsey1938
From Embryology
Ramsey EM. The Yale embryo. (1938) Contrib. Embryol., Carnegie Inst. Wash. Publ. 496, 27: 67-84.
Ramsey EM. The Yale embryo. (1938) Contrib. Embryol., Carnegie Inst. Wash. Publ. 496, 27: 67-84.