APA (7th ed.) Citation

Shawyer, Jo, O'Brien,Aloysius, & Aloysius, O. Aloysius's drawing of flagstone and shim.

Chicago Style (17th ed.) Citation

Shawyer, Jo, O'Brien,Aloysius, and O'Brien Aloysius. Aloysius's Drawing of Flagstone and Shim.

MLA (9th ed.) Citation

Shawyer, et al. Aloysius's Drawing of Flagstone and Shim.

Warning: These citations may not always be 100% accurate.