^Wood, L. J. (2007).
"Niseko - Shakotan - Otaru Kaigan". MPA Global: A database of the world's marine protected areas. Sea Around Us Project, UNEP-WCMC & WWF. Retrieved 2009-06-09.
^
ab"The Niseko - Shakotan - Otaru Kaigan Quasi National Park". World Database on Protected Areas (WDPA) Annual Release 2009. The WDPA is a joint product of UNEP and IUCN, prepared by UNEP-WCMC, supported by IUCN WCPA and working with Governments, the Secretariats of MEAs and collaborating NGOs. February 2009. Retrieved 2009-06-09.
^"ニセコ積丹小樽海岸国定公園" [Niseko-Shakotan-Otaru Kaigan Quasi-National Park]. Dijitaru Daijisen (in Japanese). Tokyo: Shogakukan. 2012.
OCLC56431036. Archived from
the original on August 25, 2007. Retrieved 2012-07-12.
^"ニセコ積丹小樽海岸国定公園" [Niseko-Shakotan-Otaru Kaigan Quasi-National Park]. Nihon Kokugo Daijiten (in Japanese). Tokyo: Shogakukan. 2012.
OCLC56431036. Archived from
the original on August 25, 2007. Retrieved 2012-08-12.
External links
ニセコ積丹小樽海岸国定公園(in Japanese), Japan Integrated Biodiversity Information System. Ministry of the Environment of Japan.