TY  - BOOK
AU  -   Johnson, Leland G.
AU  - Johnson, Rebecca L.
TI  - Essentials of biology
U1  - 570 23
PY  - 1986///
CY  - Dubuque, Iowa : 
PB  -  W.C. Brown Publishers
KW  -  Biology
N1  - Includes index
ER  -