Dyfyniad APA

Unsworth, M. H., & Ormrod, D. P. (1982). Effects of gaseous air pollution in agriculture and horticulture [proceedings]. Butterworths.

Dyfyniad Arddull Chicago

Unsworth, M. H., and D. P. Ormrod. Effects of Gaseous Air Pollution in Agriculture and Horticulture [proceedings]. London: Butterworths, 1982.

Dyfyniad MLA

Unsworth, M. H., and D. P. Ormrod. Effects of Gaseous Air Pollution in Agriculture and Horticulture [proceedings]. Butterworths, 1982.

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