Cita APA (7a ed.)

Kopal, Z. (1968). Telescopes in space. Faber.

Cita Chicago Style (17a ed.)

Kopal, Zdenek. Telescopes in Space. London: Faber, 1968.

Cita MLA (8a ed.)

Kopal, Zdenek. Telescopes in Space. Faber, 1968.