LAZER, W. (1994). Handbook Of Demographics For Marekting And Advertising New Trends In The American Marketplace William Lazer. Lexington Books.
Lua i Stíl Chicago (17ú heag.)LAZER, William. Handbook Of Demographics For Marekting And Advertising New Trends In The American Marketplace William Lazer. Lexington Books, 1994.
Lua MLA (8ú heag.)LAZER, William. Handbook Of Demographics For Marekting And Advertising New Trends In The American Marketplace William Lazer. Lexington Books, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.