Watt, A. (1890). The art of leather manufacture: Being a practical handbook in which the operations of tanning, currying and leather dressing are fully described, the principles of tanning explained, and many recent processes introduced, as also methods for the estimation of tannin and a description of the arts of glue boiling, gut dressing, & c. (Third edition, revised, with additions.). London: Crosby Lockwood and Son.

Watt, Alexander. The Art of Leather Manufacture: Being a Practical Handbook in Which the Operations of Tanning, Currying and Leather Dressing Are Fully Described, the Principles of Tanning Explained, and Many Recent Processes Introduced, As Also Methods for the Estimation of Tannin and a Description of the Arts of Glue Boiling, Gut Dressing, & C. Third edition, revised, with additions. London: Crosby Lockwood and Son, 1890.

Watt, Alexander. The Art of Leather Manufacture: Being a Practical Handbook in Which the Operations of Tanning, Currying and Leather Dressing Are Fully Described, the Principles of Tanning Explained, and Many Recent Processes Introduced, As Also Methods for the Estimation of Tannin and a Description of the Arts of Glue Boiling, Gut Dressing, & C. Third edition, revised, with additions. London: Crosby Lockwood and Son, 1890.