Dyfyniad APA

(1992). How a soybean plant develops. Iowa: Iowa State University of Science and Technology.

Dyfyniad Arddull Chicago

How a Soybean Plant Develops. Iowa: Iowa State University of Science and Technology, 1992.

Dyfyniad MLA

How a Soybean Plant Develops. Iowa: Iowa State University of Science and Technology, 1992.

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