APA (7th ed.) Citation

Heawood, E. (1969). Watermarks mainly of the 17th and 18th centuries. Paper Publ. Society.

Chicago Style (17th ed.) Citation

Heawood, Edward. Watermarks Mainly of the 17th and 18th Centuries. Hilversum: Paper Publ. Society, 1969.

MLA (9th ed.) Citation

Heawood, Edward. Watermarks Mainly of the 17th and 18th Centuries. Paper Publ. Society, 1969.

Warning: These citations may not always be 100% accurate.