for A-level and intermediate students in Africa Ewer, D. W. Hall, J. B. (John Bartholomew) 1932- Clerk, G. C. (George Carver) text London Longman 1972- monographic v. : ill. ; 25 cm. v. 1. Organisms and their environments. editors, D. W. Ewer, J. B. Hall ; contributors G. C. Clerk ... [et al.]. Includes bibliographies and index. Ecology Juvenile literature Biology Juvenile literature QH541 .E93 1972 574.5 0582609429 (v. 1) : 76380658 UOEL 000 20150409103237.0 000