Sparks, Karen Jacobs. Encyclopaedia Britannica 2011 book of the year / edited by Karen Jacobs Sparks and Melinda C Shepherd. - / . - Chicago : Encyclopaedia Britannica , 2011. - 880p. : ills. figs, pictures ; 29cm . World data at the end World data at the end Includes index ISBN: 9781615354528 RS3,400.00 Subjects--Index Terms: ENCYCLOPEDIAS AND DICTIONARIES Dewey Class. No.: 031 / SPA/E