TY  - GEN
AU  - Franzén,Åke
TI  - On spermiogenesis, morphology of the spermatozoon, and biology of fertilization among invertebrates
PY  - 1956///
CY  - Uppsala
PB  - Almqvist & Wiksells boktryckeri, 
N1  - Tav. di studio SZN ; dedica autore
ER  -