Richard Long : Selected works, 1979-1982.

MLA

Richard Long : Selected Works, 1979-1982. Ottawa: National Museums of Canada, National Gallery, 1982.

APA

(1982). Richard Long : Selected works, 1979-1982. Ottawa: National Museums of Canada, National Gallery.

Chicago

Richard Long: Selected Works, 1979-1982. Ottawa: National Museums of Canada, National Gallery, 1982.