Mechanical arithmetic,
or, The history of the counting machine,
by D. E. Felt ...
APA Citation
Felt, D. E. (Dorr Eugene). (1916). Mechanical arithmetic: or, The history of the counting machine. [Chicago: Washington institute.
MLA Citation
Felt, D. E. (Dorr Eugene), 1862-. Mechanical Arithmetic: Or, The History of the Counting Machine. [Chicago: Washington institute, 1916.
Warning: These citations may not always be complete (especially for serials).