APA (7th ed.) Citation

Manni, M. F., & Le, Y. (2014). Salem Maritime National Historic Site, visitor study: Summer 2013. U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science.

Chicago Style (17th ed.) Citation

Manni, Marc F., and Yen Le. Salem Maritime National Historic Site, Visitor Study: Summer 2013. Fort Collins, Colorado: U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2014.

MLA (9th ed.) Citation

Manni, Marc F., and Yen Le. Salem Maritime National Historic Site, Visitor Study: Summer 2013. U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2014.