Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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