Lua APA (7ú heag.)

ALBRECHT, K., & ZENKE, R. (1985). Service America: Doing business in the new economy. Dow Jones-Irwin.

Lua i Stíl Chicago (17ú heag.)

ALBRECHT, Karl, agus Ron ZENKE. Service America: Doing Business in the New Economy. Homewood: Dow Jones-Irwin, 1985.

Lua MLA (9ú heag.)

ALBRECHT, Karl, agus Ron ZENKE. Service America: Doing Business in the New Economy. Dow Jones-Irwin, 1985.

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