Dyfyniad APA

Foster, D. (1968). Aviation hail problem. World Meteorological Organization.

Dyfyniad Arddull Chicago

Foster, D.S. Aviation Hail Problem. Geneva: World Meteorological Organization, 1968.

Dyfyniad MLA

Foster, D.S. Aviation Hail Problem. World Meteorological Organization, 1968.

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