APA (7e ed.) Bronvermelding

Edited by Hoffman, G. W., & Contributing authors , B. D. ,. o. (1969). A geography of Europe: Including Asiatic U. S. S. R (3rd ed.). Ronald Press Co.

Chicago (17e ed.) Bronvermelding

Edited by Hoffman, George W., en Brunnschweiler Dieter ,and others Contributing authors. A Geography of Europe: Including Asiatic U. S. S. R. 3rd ed. New York: Ronald Press Co, 1969.

MLA (9e ed.) Bronvermelding

Edited by Hoffman, George W., en Brunnschweiler Dieter ,and others Contributing authors. A Geography of Europe: Including Asiatic U. S. S. R. 3rd ed. Ronald Press Co, 1969.