Dyfyniad APA

Timbs, J. (1851). The year-book of facts in the Great Exhibition of 1851: Its origin and progress, constructive details of the building. D. Bogue.

Dyfyniad Arddull Chicago

Timbs, John. The Year-book of Facts in the Great Exhibition of 1851: Its Origin and Progress, Constructive Details of the Building. London: D. Bogue, 1851.

Dyfyniad MLA

Timbs, John. The Year-book of Facts in the Great Exhibition of 1851: Its Origin and Progress, Constructive Details of the Building. D. Bogue, 1851.

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