MLA

Friend, Kenrick, W. (William), 1725?-1779. A defence of Mr. Kenrick's Review of Dr. Johnson's Shakespeare : containing a number of curious and ludicrous anecdotes of literary biography / By a friend .... 1766. https://collections.library.yale.edu/catalog/10000136.

APA, 6th edition

Friend, & Kenrick, W. (William), 1725?-1779. (1766)[A defence of Mr. Kenrick's Review of Dr. Johnson's Shakespeare : containing a number of curious and ludicrous anecdotes of literary biography / By a friend ...]. https://collections.library.yale.edu/catalog/10000136.