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Dyfyniad Arddull ChicagoGeetha.G.R. Evaluation of Heliospheric Current Sheet from H-alpha Synoptic Charts. Department of Physics, University of Kerala, 1987.
Dyfyniad MLAGeetha.G.R. Evaluation of Heliospheric Current Sheet from H-alpha Synoptic Charts. 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.