I R Calder. (1998). Water - resource and land-use issues. Srilanka: IWMI(International Water Management Institute).
Trích dẫn kiểu ChicagoI R Calder. Water - Resource and Land-use Issues. Srilanka: IWMI(International Water Management Institute), 1998.
MLA引文I R Calder. Water - Resource and Land-use Issues. Srilanka: IWMI(International Water Management Institute), 1998.
警告:这些引文格式不一定是100%准确.