Placid Harbor
MLA
International Association of Machinists. "Placid Harbor." Georgia State University. Special Collections. 1850/2010, http://digitalcollections.library.gsu.edu/cdm/ref/collection/labor/id/6880.
APA
International Association of Machinists (1850/2010). Placid Harbor. Retrieved from http://digitalcollections.library.gsu.edu/cdm/ref/collection/labor/id/6880
Chicago
International Association of Machinists. "Placid Harbor." 1850/2010. August 7, 2025. http://digitalcollections.library.gsu.edu/cdm/ref/collection/labor/id/6880.
