TY  - BOOK
AU  - Dreyfus, Amos
AU  - Roth, Zvi
TI  - Twelfth-grade biology pupils' opinions on interventions of man in nature : agreement, indifference and ambivalence
KW  - BIOLOGIA
KW  - CIENCIA Y SOCIEDAD
KW  - EDUCACION CIENTIFICA
N1  - Julio 1993
ER  -