Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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