A supplemental apology for the believers in the Shakspeare-papers:
being a reply to Mr. Malone's answer, which was early announced but never published:
with a dedication to George Steevens, and a postscript to T.J.Mathias. By George Chalmers.
APA Citation
Chalmers, G. (1799). A supplemental apology for the believers in the Shakspeare-papers: being a reply to Mr. Malone's answer, which was early announced but never published. London: T.Egerton.
MLA Citation
Chalmers, George, 1742-1825. A Supplemental Apology for the Believers In the Shakspeare-papers: Being a Reply to Mr. Malone's Answer, Which Was Early Announced but Never Published. London: T.Egerton, 1799.
Warning: These citations may not always be complete (especially for serials).