Dennis Oppenheim : Proposals 1967-1974.

MLA

Dennis Oppenheim : Proposals 1967-1974. 50/500, 51/500, 106/500, 107/500 ex. Brussel / Hamburg: Lebeer-Hossmann, 1974.

APA

(1974). Dennis Oppenheim : Proposals 1967-1974. 50/500, 51/500, 106/500, 107/500 ex. Brussel / Hamburg: Lebeer-Hossmann.

Chicago

Dennis Oppenheim: Proposals 1967-1974. 50/500, 51/500, 106/500, 107/500 ex. Brussel / Hamburg: Lebeer-Hossmann, 1974.