APA (7e ed.) Bronvermelding

LOWIS DAVID. (1990). SECRETS OF LANGAUAGE OF SUCCESS: ACHIEVE IT ALL IN BUSINESS AND LIFE. CORGI BOOK.

Chicago (17e ed.) Bronvermelding

LOWIS DAVID. SECRETS OF LANGAUAGE OF SUCCESS: ACHIEVE IT ALL IN BUSINESS AND LIFE. LONDON: CORGI BOOK, 1990.

MLA (9e ed.) Bronvermelding

LOWIS DAVID. SECRETS OF LANGAUAGE OF SUCCESS: ACHIEVE IT ALL IN BUSINESS AND LIFE. CORGI BOOK, 1990.