Chicago: Noah Webster Jr., "Z," American Dictionary of the English Language, Vol. 2 in An American Dictionary of the English Language, Vol. 2 (New York: S. Converse, 1828), Original Sources, accessed May 3, 2025, http://www.originalsources.com/Document.aspx?DocID=ISIBKUJH8CA4TH6.
MLA: Webster, Noah, Jr. "Z." American Dictionary of the English Language, Vol. 2, in An American Dictionary of the English Language, Vol. 2, New York, S. Converse, 1828, Original Sources. 3 May. 2025. http://www.originalsources.com/Document.aspx?DocID=ISIBKUJH8CA4TH6.
Harvard: Webster, N, 'Z' in American Dictionary of the English Language, Vol. 2. cited in 1828, An American Dictionary of the English Language, Vol. 2, S. Converse, New York. Original Sources, retrieved 3 May 2025, from http://www.originalsources.com/Document.aspx?DocID=ISIBKUJH8CA4TH6.