Craik, G. L. (1830). The pursuit of knowledge under difficulties: Illustrated by anecdotes. Charles Knight.
Citace podle Chicago (17th ed.)Craik, George L. The Pursuit of Knowledge Under Difficulties: Illustrated by Anecdotes. London: Charles Knight, 1830.
Citace podle MLA (8th ed.)Craik, George L. The Pursuit of Knowledge Under Difficulties: Illustrated by Anecdotes. Charles Knight, 1830.
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