APA-viite (7. p.)

Wimer, A., & Hobbs, R. (1980). Robert Smithson: Sculpture. Herbert F. Johnson Museum of Art.

Chicago-viite (17. p.)

Wimer, Ann, ja Robert Hobbs. Robert Smithson: Sculpture. New York: Herbert F. Johnson Museum of Art, 1980.

MLA-viite (8. p.)

Wimer, Ann, ja Robert Hobbs. Robert Smithson: Sculpture. Herbert F. Johnson Museum of Art, 1980.