A voyage to the Pacific Ocean : undertaken, by the command of His Majesty, for making discoveries in the Northern Hemisphere : to determine the position and extent of the west side of North America ... performed under the direction of Captains Cook, Clerke, and Gore, in His Majesty's Ships the Resolution and Discovery, in the years 1776, 1777, 1778, 1779, and 1780 / Cook, James. 1784?.