The Statesman's Year Book. Statistical and Historical Annual of the States of the World for the year 1924. Edited by Sir John Scott Keltic and M. Epstein, Macmillan and Co. London 1924.

Redaktionen, .-. (1924). The Statesman’s Year Book. Statistical and Historical Annual of the States of the World for the year 1924. Edited by Sir John Scott Keltic and M. Epstein, Macmillan and Co. London 1924. Geografisk Tidsskrift, 27. Hentet fra https://tidsskrift.dk/geografisktidsskrift/article/view/47323