Lua APA (7ú heag.)
Grigg, N. S., & Zenzen, M. (2009). The water workforce: Recruiting & retaining high-performance employees. American Water Works Association.
Lua i Stíl Chicago (17ú heag.)
Grigg, Neil S., agus Mary Zenzen. The Water Workforce: Recruiting & Retaining High-performance Employees. Denver, Colo.: American Water Works Association, 2009.
Lua MLA (9ú heag.)
Grigg, Neil S., agus Mary Zenzen. The Water Workforce: Recruiting & Retaining High-performance Employees. American Water Works Association, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.