Butler, C. J., & Armagh Observatory. (1990). Seeing stars: Two hundred years of astronomy in Armagh 1790-1990. [Armagh Observatory].
MLA CitationButler, C. J., and Armagh Observatory. Seeing Stars: Two Hundred Years of Astronomy in Armagh 1790-1990. [Armagh Observatory], 1990.
Warning: These citations have been automatically generated and may not always be 100% accurate..