Cita APA (7a ed.)

Kopal, Z. (1956). Astronomical Optics. North-Holland Publishing Company.

Cita Chicago Style (17a ed.)

Kopal, Zdenek. Astronomical Optics. Amsterdam: North-Holland Publishing Company, 1956.

Cita MLA (9a ed.)

Kopal, Zdenek. Astronomical Optics. North-Holland Publishing Company, 1956.