Zöllner, F., & Zöllner, F. (2016). Rubens reworks Leonardo: "The fight for the standard". Heidelberg: Universitätsbibliothek Heidelberg.
Chicago Style CitationZöllner, Frank, and Frank Zöllner. Rubens Reworks Leonardo: "The Fight for the Standard". Heidelberg: Universitätsbibliothek Heidelberg, 2016.
MLA CitationZöllner, Frank, and Frank Zöllner. Rubens Reworks Leonardo: "The Fight for the Standard". Heidelberg: Universitätsbibliothek Heidelberg, 2016.
Warning: These citations may not always be 100% accurate.