APA
Townsend C R; Begon M; Harper J L, Harper J L & Townsend C R; Begon M; Harper J L.Essentials of ecology. : .
Chicago
Townsend C R; Begon M; Harper J L, Harper J L and Townsend C R; Begon M; Harper J L.Essentials of ecology. : .
Harvard
Townsend C R; Begon M; Harper J L, Harper J L and Townsend C R; Begon M; Harper J L.Essentials of ecology. : .
MLA
Townsend C R; Begon M; Harper J L, Harper J L and Townsend C R; Begon M; Harper J L.: . .
