Cita APA

(2011). Sky & Telescope, the Essential Magazine of Astronomy. April 1998. Sky Publishing Corp.

Chicago Style Citation

Sky & Telescope, the Essential Magazine of Astronomy. April 1998. Sky Publishing Corp, 2011.

Cita MLA

Sky & Telescope, the Essential Magazine of Astronomy. April 1998. Sky Publishing Corp, 2011.

Atenció: Aquestes cites poden no estar 100% correctes.