Ledyard, J. (1963). A journal of Captain Cook's last voyage to the Pacific Ocean and in quest of a North-west passage between Asia and America: Performed in the years, 1776, 1777, 1778, and 1779. Quadrangle Books.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ledyard, John. A Journal of Captain Cook's Last Voyage to the Pacific Ocean and in Quest of a North-west Passage Between Asia and America: Performed in the Years, 1776, 1777, 1778, and 1779. Chicago: Quadrangle Books, 1963.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ledyard, John. A Journal of Captain Cook's Last Voyage to the Pacific Ocean and in Quest of a North-west Passage Between Asia and America: Performed in the Years, 1776, 1777, 1778, and 1779. Quadrangle Books, 1963.
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