Dyfyniad APA

Singhal, R. P. (2009). Elemetns of space physics. PHI Learning.

Dyfyniad Arddull Chicago

Singhal, R. P. Elemetns of Space Physics. New Delhi: PHI Learning, 2009.

Dyfyniad MLA

Singhal, R. P. Elemetns of Space Physics. PHI Learning, 2009.

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