Dyfyniad APA

Hammond Winifred. (1964). Plants, Food and People. NewYork.

Dyfyniad Arddull Chicago

Hammond Winifred. Plants, Food and People. NewYork, 1964.

Dyfyniad MLA

Hammond Winifred. Plants, Food and People. NewYork, 1964.

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