Fisher, A. (1821). A journal of a voyage of discovery to the arctic regions, in his majesty's ships Hecla and Griper, in the years 1819 & 1820 (3a. ed.). Longman, Hurst, Rees, Orme, and Brown.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Fisher, Alexander. A Journal of a Voyage of Discovery to the Arctic Regions, in His Majesty's Ships Hecla and Griper, in the Years 1819 & 1820. 3a. ed. Londres: Longman, Hurst, Rees, Orme, and Brown, 1821.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Fisher, Alexander. A Journal of a Voyage of Discovery to the Arctic Regions, in His Majesty's Ships Hecla and Griper, in the Years 1819 & 1820. 3a. ed. Longman, Hurst, Rees, Orme, and Brown, 1821.
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