Sikes, Slyvia K Lake Chad / Slyvia K. Sikes - London : Eyre Methuen , 1972 - xix, 234 p. : ill. ; 22 cm. Includes bibligraphy references (P.222-225 ) ISBN: 4132275906 Subjects--Topical Terms: Natural history--Chad, Lake Subjects--Geographic Terms: Chad, Lake, Watershed Dewey Class. No.: 916 SIK