Template:Ref-McClendon1910
From Embryology
McClendon JF. The development of isolated blastomeres of the frog's egg. (1910) {Amer. J Anat.}} 10: 425
McClendon JF. The development of isolated blastomeres of the frog's egg. (1910) {Amer. J Anat.}} 10: 425