APA (7th ed.) Citation

Ballachey, B. E. (2014). 2013 update on sea otter studies to assess recovery from the 1989 Exxon Valdez oil spill, Prince William Sound, Alaska. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Ballachey, Brenda Elizabeth. 2013 Update on Sea Otter Studies to Assess Recovery from the 1989 Exxon Valdez Oil Spill, Prince William Sound, Alaska. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2014.

MLA (9th ed.) Citation

Ballachey, Brenda Elizabeth. 2013 Update on Sea Otter Studies to Assess Recovery from the 1989 Exxon Valdez Oil Spill, Prince William Sound, Alaska. U.S. Department of the Interior, U.S. Geological Survey, 2014.