MLA

Kay, John, 1742-1826, printmaker. John Steel of the parish of Little Dunkeld Perthshire aged 109 year drawn from the life / [graphic]. [1805]. https://collections.library.yale.edu/catalog/11018153.

APA, 6th edition

Kay, John, 1742-1826, printmaker. ([1805])[John Steel of the parish of Little Dunkeld Perthshire aged 109 year drawn from the life / [graphic]]. https://collections.library.yale.edu/catalog/11018153.