Spieth, D. A. (2011). All that happened had to happen: Walter Bortolossi / Text by Darius A. Spieth ; published by Louisiana State University School of Art. Louisiana State University Press.
Chicago-Zitierstil (17. Ausg.)Spieth, Darius A. All That Happened Had to Happen: Walter Bortolossi / Text by Darius A. Spieth ; Published by Louisiana State University School of Art. Baton Rouge: Louisiana State University Press, 2011.
MLA-Zitierstil (8. Ausg.)Spieth, Darius A. All That Happened Had to Happen: Walter Bortolossi / Text by Darius A. Spieth ; Published by Louisiana State University School of Art. Louisiana State University Press, 2011.
警告：這些引文格式不一定是100％准確.