Banks, John, 1927- A selection of the butterflies of Sri Lanka / eng John and Judy Banks. - 1st ed. - Colombo : Lake House Investments, c1985. - [37] p. : col. ill., map ; 20 x 27 cm. Includes index. LCCN: Subjects--Topical Terms: Butterflies--Sri Lanka--Identification. Dewey Class. No.: X 595.78 / JON