Cita APA

Abetti, G., & Hack, M. (1964). Nebulae and galaxies tr by V Barocas. Faber and Faber.

Chicago Edition Citation

Abetti, Giorgio, i Margherita Hack. Nebulae and Galaxies Tr by V Barocas. London: Faber and Faber, 1964.

Cita MLA

Abetti, Giorgio, i Margherita Hack. Nebulae and Galaxies Tr by V Barocas. Faber and Faber, 1964.