Coba jelasin Bacaan tambahan dari Penemuan Neptunus dong

Hubbell, J. G. & Smith, R. W. – Neptune in America –Negotiating a Discovery – History of Astronomy Journal V.23, NO. 4/NOV, P.261, 1992 (Bibliographic Code: 1992JHA....23..261H)

Lecture notes with orbital positions at the time of discovery.

Harrison, H. M (1994). Voyager in Time and Space: The Life of John Couch Adams, Cambridge Astronomer. Lewes: Book Guild, ISBN 0-86332-918-7

Hutchins, R. (2004) "Adams, John Couch (1819–1892)", Oxford Dictionary of National Biography, Oxford University Press, accessed 23 August 2007

Sheehan, W. et al. (2004). The Case of the Pilfered Planet — Did the British steal Neptune? Scientific American