Dyfyniad APA

(1977). Research on urban hydrology: A contribution to the international hydrologic al programme. Unesco.

Dyfyniad Arddull Chicago

Research on Urban Hydrology: A Contribution to the International Hydrologic Al Programme. Paris: Unesco, 1977.

Dyfyniad MLA

Research on Urban Hydrology: A Contribution to the International Hydrologic Al Programme. Unesco, 1977.

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