TY  - BOOK
AU  - Watson DMS
TI  - Evolution of the labyrinthodonts
U1  - 567.6(68) 
PY  - 1962///
CY  - London
PB  - royal Soc
KW  - Amphibia
KW  - South Africa
N1  - Reprinted from Philosophical Transactions of Royal Society of London - Series B 245(723) 20 Dec 1962
ER  -