Gaya APA

Burbidge, G, R., G, I, L, D, I, P, J. (NULL). Annual Review of astronomy and astrophysiscs volume 13 . California:: California: Annual Rewiew; 1975.

Gaya MLA

Burbidge, Geoffrey, R., G, I., Layzer,, David, II., Phillips,, John. "Annual Review of astronomy and astrophysiscs volume 13". California:: California: Annual Rewiew; 1975, NULL. Text.