Main, R., & Lynn, W. T. (1882). Rudimentary astronomy (third edition.). Crosby Lockwood.
Cita Chicago (17th ed.)Main, Robert, i William Thynne Lynn. Rudimentary Astronomy. third edition. London: Crosby Lockwood, 1882.
Cita MLA (9th ed.)Main, Robert, i William Thynne Lynn. Rudimentary Astronomy. third edition. Crosby Lockwood, 1882.
Atenció: Aquestes cites poden no estar 100% correctes.