APA (7e ed.) Bronvermelding

Kotas, R. (1970). Labour costs in restaurants: A study of labour costs in catering establishments in the Greater London area. Intertext.

Chicago (17e ed.) Bronvermelding

Kotas, Richard. Labour Costs in Restaurants: A Study of Labour Costs in Catering Establishments in the Greater London Area. London: Intertext, 1970.

MLA (9e ed.) Bronvermelding

Kotas, Richard. Labour Costs in Restaurants: A Study of Labour Costs in Catering Establishments in the Greater London Area. Intertext, 1970.