Riedl, P. A., Grünewald, M. N., & Seoane, L. (1964). Grünewald. Codex.
Chicago Style (17th ed.) CitationRiedl, Peter Anselm, Mathis Nithhardt Grünewald, and Luis Seoane. Grünewald. Buenos Aires: Codex, 1964.
MLA (9th ed.) CitationRiedl, Peter Anselm, et al. Grünewald. Codex, 1964.