Gaya APA

Castle, H, N, A, O, R, G, O, H. (1955). The abridged nautical almanac for the year . London: Her Majesy\'s Stationery Offie.

Gaya MLA

Castle, H.M., Nautical, Almanac, Office,, Royal, Greenwich, Observatory,, Hersmonceux. "The abridged nautical almanac for the year". London: Her Majesy\'s Stationery Offie, 1955. Text.