TY  - BOOK
AU  - F.Zwicky
AU  - Zwicky,F.
TI  - Morphological Astronomy
U1  - B1504Z98f448 
PY  - 1957///
CY  - Berlin
PB  - Springer Verlag
KW  - Astronomy-Astrphysics
KW  - Morfology
N1  - pp290-293
ER  -