APA (7e ed.) Bronvermelding

(1958). Business and specialised publications of Great Britain, including annuals, year books and similar publications. s.n.

Chicago (17e ed.) Bronvermelding

Business and Specialised Publications of Great Britain, Including Annuals, Year Books and Similar Publications. London: s.n, 1958.

MLA (9e ed.) Bronvermelding

Business and Specialised Publications of Great Britain, Including Annuals, Year Books and Similar Publications. s.n, 1958.