TY  - BOOK
AU  - Walker, W.F.
TI  - Vertebrate Dissection
SN  - 0721690998
AV  - QL812. W32 1980 
PY  - 1980///
CY  - Saunders college publishing 
PB  - Holt, Rinehart & Winston
KW  - The Lamprey - A primitive vertebrate
KW  - Hemichordates And Lower Chordates
ER  -