APA (7e ed.) Bronvermelding

BARNES C. (1988). PROFESSIONAL EXCELLENCE FOR SECRETARIES. CRISP PUBLICATION.

Chicago (17e ed.) Bronvermelding

BARNES C. PROFESSIONAL EXCELLENCE FOR SECRETARIES. CALIFORNIA: CRISP PUBLICATION, 1988.

MLA (9e ed.) Bronvermelding

BARNES C. PROFESSIONAL EXCELLENCE FOR SECRETARIES. CRISP PUBLICATION, 1988.

Let op: Deze citaties zijn niet altijd 100% accuraat.