Template:Ref-Grosser1909
From Embryology
Grosser O. and Tandler J. Normal plates of the development of vertebrates (Normentafeln zur Entwicklungsgeschichte der Wirbelthiere) Vol. 9. Normal Plates of the Development of the Northern Lapwing Embryo. (8. Heft Normentafeln zur Entwicklungsgeschichte des Menschen) (1908) Fisher, Jena., Germany.