Transkription:
Théel, [Johan] Hjalmar
B. Fol.
Zool.
Tagghud.
Some notes on the development of Echinocardium cordatum (Penn.)
and Parechinus miliaris (L.) [Ill.]
Aven ..
4º Uppsala & Stockholm 1912
Kungl. svenska vetenskapsakademiens handlingar. Bd. 49. N:o4.
Acta
Sv.
[Sthm, K.V.A.