APA (7e ed.) Bronvermelding

RICHARDS. (1989). EFFECTIVE SUPERVISION IN A FACTORY. INDUSTRIAL SOCIETY.

Chicago (17e ed.) Bronvermelding

RICHARDS. EFFECTIVE SUPERVISION IN A FACTORY. LONDON: INDUSTRIAL SOCIETY, 1989.

MLA (9e ed.) Bronvermelding

RICHARDS. EFFECTIVE SUPERVISION IN A FACTORY. INDUSTRIAL SOCIETY, 1989.