TY  - GEN
AU  - Sistrom,W.R.
AU  - Griffiths,Mary
AU  - Stanier,R.Y.
TI  - A note on the porphyrins excreted by the blue-green mutant of Rhodopseudomonas spheroides
PY  - 1956///
CY  - Philadelphia
PB  - [s.n.], 
ER  -