Lua APA (7ú heag.)

FOSTER, D. (1993). Sales And Marketing For The Travel Professional Dennis L.foster. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

FOSTER, Dennis. Sales And Marketing For The Travel Professional Dennis L.foster. McGraw-Hill, 1993.

Lua MLA (8ú heag.)

FOSTER, Dennis. Sales And Marketing For The Travel Professional Dennis L.foster. McGraw-Hill, 1993.

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