TY - BOOK AU - Thomas, David S. G AU - Shaw, Paul A TI - The Kalahari environment SN - 9780521129770 SN - 90040873 U1 - 508.6883 THO PY - 1991/// CY - Cambridge PB - Cambridge University Press KW - Kalahari Desert N1 - Includes bibliographical references (p. 255-275) and index ER -