TY  - BOOK
AU  - NewMan, H.H
TI  - The Phylum Chordata: Biology of Vertebrates and their Kin 
U1  - 596 
PY  - 1961///
CY  - New York
PB  - The Macmillan  Company
KW  -  Zoology
KW  - Chordata
ER  -