National Transportation Symposium (1966 & American Society of Mechanical Engineers. Aviation and Space Division. (1966). 1966 National Transportation Symposium, San Francisco, California May 1-6, 1966. American Society of Mechanical Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)National Transportation Symposium (1966 και American Society of Mechanical Engineers. Aviation and Space Division. 1966 National Transportation Symposium, San Francisco, California May 1-6, 1966. New York: American Society of Mechanical Engineers, 1966.
Παραπομπή σε μορφή MLA (9th εκδ.)National Transportation Symposium (1966 και American Society of Mechanical Engineers. Aviation and Space Division. 1966 National Transportation Symposium, San Francisco, California May 1-6, 1966. American Society of Mechanical Engineers, 1966.