Dyfyniad APA

I R Calder. (1998). Water - resource and land-use issues. Srilanka: IWMI(International Water Management Institute).

Dyfyniad Arddull Chicago

I R Calder. Water - Resource and Land-use Issues. Srilanka: IWMI(International Water Management Institute), 1998.

Dyfyniad MLA

I R Calder. Water - Resource and Land-use Issues. Srilanka: IWMI(International Water Management Institute), 1998.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.