Dyfyniad APA

V S RAO. (1999). Principle of weed science. Enfield, New Hampshire: Science.

Dyfyniad Arddull Chicago

V S RAO. Principle of Weed Science. Enfield, New Hampshire: Science, 1999.

Dyfyniad MLA

V S RAO. Principle of Weed Science. Enfield, New Hampshire: Science, 1999.

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