Westermann bildkarten lexikon / Herausgegeben von Erich Kaden...[et al.]
Georg Westermann, 1956
 Buku Referensi
Bos-Niermeyer Schoolatlas der geheele aarde / Herzien door: B.A. Kwast
Wolters' Uitgevers-Maatschappij, 1934
 Buku Referensi
Hammond's new supreme world atlas
Garden City Books, [date of publication not identified]
 Buku Referensi
Hammond
Headline world atlas
Hammod Incorproted, 1986
 Buku Referensi
World atlas
University of Technology Sydney
Lovell Johns , 1996
 Buku Referensi