Cita APA (7a ed.)
O´Callaghan, P. W. (1996). Integrated Environmental Management Handbook. John Wiley.
Cita Chicago Style (17a ed.)
O´Callaghan, Paul W. Integrated Environmental Management Handbook. Chichester: John Wiley, 1996.
Cita MLA (9a ed.)
O´Callaghan, Paul W. Integrated Environmental Management Handbook. John Wiley, 1996.
Precaución: Estas citas no son 100% exactas.