Practical invertebrate zoology a laboratory manual for the study of the major groups of invertebrates, excluding protochordates /
Dales, R. P.(Rodney Phillips),1927-
Cox, F. E. G.(Francis Edmund Gabriel)
London Sidgwick & Jackson
1969
Pbk. 25/-. sbn 283 98061 3
bibl p343-349
Invertebrates