ハインリヒ・バルト
“A general historical description of the state of human society in Northern Central Africa”. Journal of the Royal Geographical Society of London 30: 112–128. JSTOR 1798293. https://archive.org/stream/jstor-1798293/1798293#page/n1/mode/2up.
Barth, Heinrich (1862–1866) (German, English). Sammlung und bearbeitung central-afrikanischer vokabularien; Collection of vocabularies of Central-African languages (3 Volumes). Gotha: Justas Perthes Volume 1, Volume 2, Volume 3
Barth, Heinrich (1864) (German). Reise durch das Innere der Europäischen Türkei von Rustchuk über Philippopel, Rilo (Monastir), Bitolia und den Thessalischen Olym nach Saloniki. Berlin: Dietrich Reimer. https://archive.org/details/reisedurchdasin00bartgoog/page/n10/mode/2up?view=theater
この記事にはアメリカ合衆国内で著作権が消滅した次の百科事典本文を含む: Chisholm, Hugh, ed. (1911). "Barth, Heinrich". Encyclopædia Britannica (英語) (11th ed.). Cambridge University Press.
この記事にはパブリックドメインである次の出版物本文が含まれる: Gilman, D. C.; Peck, H. T.; Colby, F. M., eds. (1905). "Barth, Heinrich" . New International Encyclopedia (英語) (1st ed.). New York: Dodd, Mead.
Darwin, Charles (1868). The variation of animals and plants under domestication, Volume 1. London: John Murray. https://archive.org/stream/NHM_UK_L_2631475001#page/n7/mode/2up
Kemper, Steve (2012). A Labyrinth of Kingdoms: 10,000 Miles through Islamic Africa. W. W. Norton & Company. ISBN 978-0-393-07966-1