APA
Calow P., Petts G. E., . (1994). The rivers handbook: hydrological and ecological principles. Oxford [ect.]: Blackwell Scientific Publ.
Chicago
Calow Peter, Petts Geoffrey E, . 1994. The rivers handbook: hydrological and ecological principles. Oxford [ect.]: Blackwell Scientific Publ.
Harvard
Calow P., Petts G. E., . (1994). The rivers handbook: hydrological and ecological principles. Oxford [ect.]: Blackwell Scientific Publ.
MLA
Calow Peter, Petts Geoffrey E, . The rivers handbook: hydrological and ecological principles. Oxford [ect.]: Blackwell Scientific Publ. 1994.