Template:Ref-Painter1921
From Embryology
Painter TS. Studies in reptilian spermatogenesis. I. The spermatogenesis of lizards. (1921) J Exp. Zool. 34: 281-327.
Painter TS. Studies in reptilian spermatogenesis. I. The spermatogenesis of lizards. (1921) J Exp. Zool. 34: 281-327.