APA (7th ed.) Citation

Sack, R. L. An investigation of precast and prestressed concrete bulb multi-beam bridges. National Technical Information Service.

Chicago Style (17th ed.) Citation

Sack, Ronald L. An Investigation of Precast and Prestressed Concrete Bulb Multi-beam Bridges. Springfield, Va.: National Technical Information Service.

MLA (8th ed.) Citation

Sack, Ronald L. An Investigation of Precast and Prestressed Concrete Bulb Multi-beam Bridges. National Technical Information Service.

Warning: These citations may not always be 100% accurate.