APA (7th ed.) Citation

Huey, D. P. (1989). Design, testing and use of a lockable flapper float valve for the Ocean Drilling Program. [publisher not identified].

Chicago Style (17th ed.) Citation

Huey, David Philip. Design, Testing and Use of a Lockable Flapper Float Valve for the Ocean Drilling Program. [Place of publication not identified]: [publisher not identified], 1989.

MLA (9th ed.) Citation

Huey, David Philip. Design, Testing and Use of a Lockable Flapper Float Valve for the Ocean Drilling Program. [publisher not identified], 1989.