TY  - BOOK
AU  - Osburn,Raymond C.
TI  - Bryozoa of the Pacific coast of America: Part 2, Cheilostomata-Ascophora 
T2  - Allan Hancock Pacific Expeditions
U1  - 594.67 23
PY  - 1952///
CY  - Los Angeles, California
PB  - The University of Southern California Press
N1  - Bibliografía: p. 519-525
N2  - 2nd shelf  BIB Now: 5363
ER  -