APA
Clarke R. E., . (1986). Handbook of Ecological monitoring: A GEMS/UNEP publication. Clarendon Press, Oxford: .
Chicago
Clarke Robin Ed, . 1986. Handbook of Ecological monitoring: A GEMS/UNEP publication. Clarendon Press, Oxford: .
Harvard
Clarke R. E., . (1986). Handbook of Ecological monitoring: A GEMS/UNEP publication. Clarendon Press, Oxford: .
MLA
Clarke Robin Ed, . Handbook of Ecological monitoring: A GEMS/UNEP publication. Clarendon Press, Oxford: . 1986.