Cita APA (7th ed.)

Schaefer, B. E. (2003). Old Astrophotos: Averting a lost lega cy ; Yersterday's astronomical photographs can still produce cutting-edge science - but only if we preserve them for tomorrow's astronomers. Sky & Telescope.

Cita Chicago (17th ed.)

Schaefer, Bradley E. "Old Astrophotos: Averting a Lost Lega Cy ; Yersterday's Astronomical Photographs Can Still Produce Cutting-edge Science - but Only If We Preserve Them for Tomorrow's Astronomers." Sky & Telescope 2003.

Cita MLA (8th ed.)

Schaefer, Bradley E. "Old Astrophotos: Averting a Lost Lega Cy ; Yersterday's Astronomical Photographs Can Still Produce Cutting-edge Science - but Only If We Preserve Them for Tomorrow's Astronomers." Sky & Telescope, 2003.

Atenció: Aquestes cites poden no estar 100% correctes.