Não informado. (2008). Transactions of the Sapporo Natural History Society. Sapporo Natural History Society.
Chicago-Zitierstil (17. Ausg.)Não informado. Transactions of the Sapporo Natural History Society. Sapporo, Japão: Sapporo Natural History Society, 2008.
MLA-Zitierstil (8. Ausg.)Não informado. Transactions of the Sapporo Natural History Society. Sapporo Natural History Society, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.