Lua APA (7ú heag.)

RYAN, W. T. (1980). Personal Learning Aid For Principles Of Marketing William T Ryan. Dow Jones Irwin.

Lua i Stíl Chicago (17ú heag.)

RYAN, William T. Personal Learning Aid For Principles Of Marketing William T Ryan. Dow Jones Irwin, 1980.

Lua MLA (8ú heag.)

RYAN, William T. Personal Learning Aid For Principles Of Marketing William T Ryan. Dow Jones Irwin, 1980.

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