The Gresham steam press :
printing types and ornaments used by Unwin brothers.

APA Citation

Unwin Brothers (Firm). (18701879). The Gresham steam press: printing types and ornaments used by Unwin brothers. [London]: [publisher not identified].

MLA Citation

Unwin Brothers (Firm). The Gresham Steam Press: Printing Types And Ornaments Used by Unwin Brothers. [London]: [publisher not identified], 18701879.

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