APA-viite (7. p.)

Elgin, C. Z. Index and icon revisited: Catherine Z. Elgin. Peirce's doctrine of signs : theory, applications, and connections.(1996).

Chicago-viite (17. p.)

Elgin, Catherine Z. "Index and Icon Revisited: Catherine Z. Elgin." Peirce's Doctrine of Signs : Theory, Applications, and Connections.(1996) .

MLA-viite (8. p.)

Elgin, Catherine Z. "Index and Icon Revisited: Catherine Z. Elgin." Peirce's Doctrine of Signs : Theory, Applications, and Connections.(1996), .