Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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