Dyfyniad APA

V Palya. (1991). FAO animal production and health paper N.89: Manual for the production of Marek's disease, Gumboro disease and inactivated Newcastle disease vaccines. Rome: FAO.

Dyfyniad Arddull Chicago

V Palya. FAO Animal Production and Health Paper N.89: Manual for the Production of Marek's Disease, Gumboro Disease and Inactivated Newcastle Disease Vaccines. Rome: FAO, 1991.

Dyfyniad MLA

V Palya. FAO Animal Production and Health Paper N.89: Manual for the Production of Marek's Disease, Gumboro Disease and Inactivated Newcastle Disease Vaccines. Rome: FAO, 1991.

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