Willett, H. C., & Sanders, F. Descriptive meteorology (2nd ed.).
Dyfyniad Arddull ChicagoWillett, Hurd C., and Frederick Sanders. Descriptive Meteorology. 2nd ed.
Dyfyniad MLAWillett, Hurd C., and Frederick Sanders. Descriptive Meteorology. 2nd ed.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.