एपीए उद्धरण

Osterbrock, D. E. (1974). Astrophysics of gaseous nebulae. W H Freeman.

शिकागो स्टाइल उद्धरण

Osterbrock, Donald E. Astrophysics of Gaseous Nebulae. Sanfrancisco: W H Freeman, 1974.

एमएलए उद्धरण

Osterbrock, Donald E. Astrophysics of Gaseous Nebulae. W H Freeman, 1974.