Unitron International Systems airport lighting system, 1971
MLA
O'Neal, Tracy. "Unitron International Systems airport lighting system, 1971." Georgia State University. Special Collections. 1971-05-24, http://digitalcollections.library.gsu.edu/cdm/ref/collection/oneal/id/11064.
APA
O'Neal, Tracy (1971-05-24). Unitron International Systems airport lighting system, 1971. Retrieved from http://digitalcollections.library.gsu.edu/cdm/ref/collection/oneal/id/11064
Chicago
O'Neal, Tracy. "Unitron International Systems airport lighting system, 1971." 1971-05-24. August 4, 2025. http://digitalcollections.library.gsu.edu/cdm/ref/collection/oneal/id/11064.
