Grasskamp, W. (2013). Per Kirkeby: Recent Paintings / Michael Werner Gallery. [Text Walter Grasskamp]. Michael Werner Gallery.
Chicago-Zitierstil (17. Ausg.)Grasskamp, Walter. Per Kirkeby: Recent Paintings / Michael Werner Gallery. [Text Walter Grasskamp]. London: Michael Werner Gallery, 2013.
MLA-Zitierstil (8. Ausg.)Grasskamp, Walter. Per Kirkeby: Recent Paintings / Michael Werner Gallery. [Text Walter Grasskamp]. Michael Werner Gallery, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.