APA (7th ed.) Citation

(1989). National seismic system science plan. U.S. Gov. Print. Off.

Chicago Style (17th ed.) Citation

National Seismic System Science Plan. Washington: U.S. Gov. Print. Off, 1989.

MLA (9th ed.) Citation

National Seismic System Science Plan. U.S. Gov. Print. Off, 1989.