TY  - BOOK
AU  - Beck,D Elden
AU  - Braithwaite, Lee F. 
TI  - Invertebrate zoology: laboratory workbook 
SN  - 0023077611
U1  - 592 23
PY  - 1968///
CY  - New York
PB  - Macmillan Pub. Co
KW  - Invertebrates
N1  - Includes bibliographies
ER  -