Dyfyniad APA

(1997). Seed technology. Published jointly by Association of Official Seed Analysts [and] Society of Commercial Seed Technologists.

Dyfyniad Arddull Chicago

Seed Technology. Lincoln, NE: Published jointly by Association of Official Seed Analysts [and] Society of Commercial Seed Technologists, 1997.

Dyfyniad MLA

Seed Technology. Published jointly by Association of Official Seed Analysts [and] Society of Commercial Seed Technologists, 1997.

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