APA (7e ed.) Bronvermelding

FOLLETT ROBERT. (1978). HOW TO KEEP SCORE IN BUSINESS. MENTOR BOOKS.

Chicago (17e ed.) Bronvermelding

FOLLETT ROBERT. HOW TO KEEP SCORE IN BUSINESS. NEW YORK: MENTOR BOOKS, 1978.

MLA (9e ed.) Bronvermelding

FOLLETT ROBERT. HOW TO KEEP SCORE IN BUSINESS. MENTOR BOOKS, 1978.