TY  - BOOK
AU  - Osvald,Hugo
AU  - Aberg,Ewert
ED  - Seventh International Botanical Congress
TI  - Proceedings of the Seventh International Botanical Congress: Stockholm July 12-20 1950 
PY  - 1953///
CY  - Stockholm
PB  - Almquist & Wiksell
N1  - Septième Congrés International de Botanique
ER  -