Template:Ref-HubrechtKeibel1907
From Embryology
Hubrecht AAW. and Keibel F. Normal Plates of the Development of the Tarsier and Slow Loris Embryo (Tarsius spectrum and Nycticebus tardigradus). (1907) Vol. 7 in series by Keibel F. Normal plates of the development of vertebrates (Normentafeln zur Entwicklungsgeschichte der Wirbelthiere) Fisher, Jena., Germany.