Columbia subject headings:
Cameroonian poetry (English)--History and criticism.
Ecology in literature--History and criticism.
Literature--History and criticism.
Nature in literature--History and criticism.
Harvard subject headings:
Cameroonian poetry (English)--History and criticism.
Ecology in literature--History and criticism.
Literature--History and criticism
Nature in literature--History and criticism.
Princeton subject headings:
Cameroonian poetry (English)--History and criticism.
Ecology in literature--History and criticism.
Literature--History and criticism.
Nature in literature--History and criticism.