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Computation of time.

APA Citation

Bonsall, S. [from old catalog]., Willcocks, A. [from old catalog]. (1879). Computation of time. [Philadelphia?]: Collins, printer.

MLA Citation

Bonsall, Spencer. [from old catalog], and Alexander. [from old catalog] Willcocks. Computation of Time. [Philadelphia?]: Collins, printer, 1879.

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