Dyfyniad APA

(1987). Legend on the agro-ecological map of Mekong Delta. HaNoi: The National Institute of Agricultural planning and projection of Viet Nam.

Dyfyniad Arddull Chicago

Legend On the Agro-ecological Map of Mekong Delta. HaNoi: The National Institute of Agricultural planning and projection of Viet Nam, 1987.

Dyfyniad MLA

Legend On the Agro-ecological Map of Mekong Delta. HaNoi: The National Institute of Agricultural planning and projection of Viet Nam, 1987.

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