FOLLETT ROBERT. (1978). HOW TO KEEP SCORE IN BUSINESS. MENTOR BOOKS.
Lua i Stíl Chicago (17ú heag.)FOLLETT ROBERT. HOW TO KEEP SCORE IN BUSINESS. NEW YORK: MENTOR BOOKS, 1978.
Lua MLA (9ú heag.)FOLLETT ROBERT. HOW TO KEEP SCORE IN BUSINESS. MENTOR BOOKS, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.