APA aipamena

Walterbos, R. A. M. (1986). Stars, gas, and dust in the Andromeda Galaxy. Sterrewacht Leiden.

Chicago Style aipamena

Walterbos, Reinirus Antonius Maria. Stars, Gas, and Dust in the Andromeda Galaxy. Leiden: Sterrewacht Leiden, 1986.

MLA aipamena

Walterbos, Reinirus Antonius Maria. Stars, Gas, and Dust in the Andromeda Galaxy. Sterrewacht Leiden, 1986.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.