"Language and languages." . . "Plants Liberia." . . "Botany Liberia." . . "Liberia." . . "Liberia" . "Flora (biologie)" . . "Vai language." . . "Sciences naturelles Liberia." . . "Natural history Liberia." . . . . "Natural history." . . "Plants." . . "Africa, West" . . "Africa, West." . "Botanique Liberia." . . "Vai (langue)." . . "Zoologie Liberia." . . "Afrique occidentale" . . . . "Liberia With an Appendix on the flora of Liberia" . . . . . . . . . . . . "Liberia : in two volumes" . . . . . . . . . . "Liberia, with an appendix on the flora of Liberia" . . . . . . . . . . . "Liberia"@en . "Liberia" . . "Liberia, by Sir Harry Johnston,... with an appendix on the flora of Liberia, by Dr. Otto Stapf" . . . . . . . . . . . . . . . . . . . . . . . . . . . "Liberia ... With an Appendix on the Flora of Liberia"@en . . . . . . . . "Liberia : with an appendix on the flora of Liberia"@en . . . . . . . . . . . "Travel." . .