Lua APA (7ú heag.)

HAMMER, W. (1989). Occupational safety management and engineering (Ed.4.). Prentice Hall.

Lua i Stíl Chicago (17ú heag.)

HAMMER, Willie. Occupational Safety Management and Engineering. Ed.4. New Jersey: Prentice Hall, 1989.

Lua MLA (9ú heag.)

HAMMER, Willie. Occupational Safety Management and Engineering. Ed.4. Prentice Hall, 1989.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.