TY  - BOOK
AU  - Rosengren,John H.
TI  - Biology teacher's guide
AV  - QH315 .R65
U1  - 574/.071/2 
PY  - 1968///]
CY  - West Nyack, N.Y.
PB  - Parker Pub. Co.
KW  - Biology
KW  - Study and teaching (Secondary)
N1  - Bibliographical footnotes
ER  -