American Biology Teacher (National Association of Biology Teachers). National Association of Biology Teachers.
Chicago-Zitierstil (17. Ausg.)American Biology Teacher (National Association of Biology Teachers). National Association of Biology Teachers.
MLA-Zitierstil (9. Ausg.)American Biology Teacher (National Association of Biology Teachers). National Association of Biology Teachers.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.