APA (7th ed.) Citation

Graham, J. P. (2014). San Juan Island National Historical Park: Geologic resources inventory report. US Department of the Interior, National Park Service, Natural Resource Stewardship and Science.

Chicago Style (17th ed.) Citation

Graham, John P. San Juan Island National Historical Park: Geologic Resources Inventory Report. Fort Collins, Colorado: US Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2014.

MLA (9th ed.) Citation

Graham, John P. San Juan Island National Historical Park: Geologic Resources Inventory Report. US Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2014.