Dyfyniad APA

Helder, J. (1994). Tuber formation in the wild potato species solanum demissum lindl. Wageningen Agricultural University.

Dyfyniad Arddull Chicago

Helder, J. Tuber Formation in the Wild Potato Species Solanum Demissum Lindl. Wageningen: Wageningen Agricultural University, 1994.

Dyfyniad MLA

Helder, J. Tuber Formation in the Wild Potato Species Solanum Demissum Lindl. Wageningen Agricultural University, 1994.

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