TY  - GEN
AU  - Bernatowicz,Albert J.
TI  - How uniform is the thallus of the Alga, Ulva?
PY  - 1961///
CY  - [S.l. :  
PB  - s,n.],  
N1  - Tav. di studio SZN ;; from: Biological investigations for secondary school students
ER  -