National City, city (1990 pop. 54,249), San Diego co., S Calif., on San Diego Bay; inc. 1887. Structural metal is fabricated, and there is shipbuilding and the manufacture of recycling machinery, plastics, transportation equipment, electrical and electronic products, signs, furniture, and clothing. The city saw a steady growth in population in the late 20th cent. It serves as the headquarters of the Pacific Reserve Fleet.
"National City." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (September 26, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/national-city
"National City." The Columbia Encyclopedia, 6th ed.. . Retrieved September 26, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/national-city