Não informado. Northwest Science. Northwest Scientific Association.
Chicago-Zitierstil (17. Ausg.)Não informado. Northwest Science. Pullman, Wash: Northwest Scientific Association.
MLA-Zitierstil (8. Ausg.)Não informado. Northwest Science. Northwest Scientific Association.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.