TY  - BOOK
AU  - Pringsheim,E.G.
TI  - Pure cultures of algae / 
U1  - 589.3 PRI 
PY  - 1949///
CY  - Cambidge : 
PB  - Cambridge University Press, 
KW  - Algae
N1  -  Bibliographical references : p. 108-116
ER  -