Walter, O. (1937). Der Sa?ulenbau des Herakles. [s.l.]: [s.n.].
Chicago Style CitationWalter, Otto. Der Sa?ulenbau Des Herakles. [s.l.]: [s.n.], 1937.
MLA CitationWalter, Otto. Der Sa?ulenbau Des Herakles. [s.l.]: [s.n.], 1937.
Warning: These citations may not always be 100% accurate.