Chicago:
Noah Webster Jr., "Rubicund," 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 October 20, 2025, http://www.originalsources.com/Document.aspx?DocID=CKHCE6B6MNX6REF.
MLA:
Webster, Noah, Jr. "Rubicund." 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. 20 Oct. 2025. http://www.originalsources.com/Document.aspx?DocID=CKHCE6B6MNX6REF.
Harvard:
Webster, N, 'Rubicund' 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 20 October 2025, from http://www.originalsources.com/Document.aspx?DocID=CKHCE6B6MNX6REF.