Παραπομπή σε μορφή APA (7η εκδ.)

National Safe Transit Association. Clearwater Beach, Florida, & National Safe Transit Association. (1990). High yield packaging: Proceedings NSTA '90. National Safe Transit Association.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Safe Transit Association. Clearwater Beach, Florida, και National Safe Transit Association. High Yield Packaging: Proceedings NSTA '90. Chicago, Ill.: National Safe Transit Association, 1990.

Παραπομπή σε μορφή MLA (8th εκδ.)

National Safe Transit Association. Clearwater Beach, Florida, και National Safe Transit Association. High Yield Packaging: Proceedings NSTA '90. National Safe Transit Association, 1990.