Environmental assessment in practice / D. Owen Harrop and J. Ashley Nixon. Harrop, D. Owen, 1956- Nixon, J. Ashley, 1957- Environmental risk assessment. Environmental management. GE145 .H37 1999 363.702 21 HAE Includes bibliographical references (p. 201-215) and index. London ; New York : Routledge, 1999. 1999. 1999 Text xvi, 219 p. : eng Routledge environmental management series Routledge environmental management series.