Penny cyclopaedia of the Society for the diffusion of useful knowledge.
Supplement.

APA Citation

Society for the Diffusion of Useful Knowledge (Great Britain). (1851). Penny cyclopaedia of the Society for the diffusion of useful knowledge: Supplement. London: C. Knight.

MLA Citation

Society for the Diffusion of Useful Knowledge (Great Britain). Penny Cyclopaedia of the Society for the Diffusion of Useful Knowledge: Supplement. London: C. Knight, 1851.

Warning: These citations may not always be complete (especially for serials).