- PROF. KOKWARO JOHNO. "Geraniaceae of East African flora, London,.". In: First Edition. 4to. Hard cover. Dust jacket. Study of medicinal plants and their uses in East Africa. Pp. (xii),384, photos, line-drawings. Some light browning. University of Nairobi Press; 1971.
Total number of pages: 515, including 35 pages of colour illustrations.