National Safe Transit Association. Clearwater Beach, Florida, & National Safe Transit Association. (1990). High yield packaging: Proceedings NSTA '90. National Safe Transit Association.
芝加哥风格引文National Safe Transit Association. Clearwater Beach, Florida, 与 National Safe Transit Association. High Yield Packaging: Proceedings NSTA '90. Chicago, Ill.: National Safe Transit Association, 1990.
MLA引文National Safe Transit Association. Clearwater Beach, Florida, 与 National Safe Transit Association. High Yield Packaging: Proceedings NSTA '90. National Safe Transit Association, 1990.
警告：这些引文格式不一定是100％准确.