Howard, K. (1997). Non-toxic intaglio printmaking / Keith Howard. Printmaking Resources.
Chicago Style (17th ed.) CitationHoward, Keith. Non-toxic Intaglio Printmaking / Keith Howard. Alberta Canada: Printmaking Resources, 1997.
MLA (9th ed.) CitationHoward, Keith. Non-toxic Intaglio Printmaking / Keith Howard. Printmaking Resources, 1997.
Warning: These citations may not always be 100% accurate.