Atkinson, H. G., & Martineau, H. (1851). Letters on the laws of man's nature and development. J. Chapman.
Lua i Stíl Chicago (17ú heag.)Atkinson, Henry George, agus Harriet Martineau. Letters on the Laws of Man's Nature and Development. London: J. Chapman, 1851.
Lua MLA (8ú heag.)Atkinson, Henry George, agus Harriet Martineau. Letters on the Laws of Man's Nature and Development. J. Chapman, 1851.
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