Heawood, E. (2003). Watermarks, mainly of the 17th and 18th centuries. Krown & Spellman.
Chicago Style (17th ed.) CitationHeawood, Edward. Watermarks, Mainly of the 17th and 18th Centuries. Culver City, Ca: Krown & Spellman, 2003.
MLA (9th ed.) CitationHeawood, Edward. Watermarks, Mainly of the 17th and 18th Centuries. Krown & Spellman, 2003.
Warning: These citations may not always be 100% accurate.