April 1971 issue of Studio International edited by Peter Townsend. Contents include: "The artist's reserved rights transfer and sale agreement / the background," by Seth Siegelaub; "Arnolfini Gallery; 10 years in Bristol," by Jeremy Rees; "Correspondence;" "News and Notes;" "Bochner and photography," by Jonathan Benthall; "Art in Revolution," by Peter Wollen; "The development of the theory of Socialist Realism in Russia; 1917 to 1932," by Andrew Higgens; "Berlin Dada," by John Elderfield and Raoul Hausmann; "Coloured food," by Peter Kuttner; "Events," by Antoni Miralda and Dorothée Selz; "The House of the Vienna Secession movement," by Peter Hautmann and Klara Hautmann; "The shape's the thing; paintings by John Walker," by Dore Ashton; "Standpoints," by Daniel Buren; "An introduction to 'Art and Technology,'" by Maurice Tuchman; "The artist's reserved rights transfer and sale agreement;" and "Inno 70," by John Latham.