APA (7th ed.) Citation

(2009). Intruders among us!: Nonnative aquatic species in the Columbia River Basin. [U.S. Geological Survey].

Chicago Style (17th ed.) Citation

Intruders Among Us!: Nonnative Aquatic Species in the Columbia River Basin. [Portland, Or.?]: [U.S. Geological Survey], 2009.

MLA (9th ed.) Citation

Intruders Among Us!: Nonnative Aquatic Species in the Columbia River Basin. [U.S. Geological Survey], 2009.