SI-bureau in Vienna. Helmer (standing) and Kéthly (on his right).
Chicago Style (17th ed.) CitationSI-bureau in Vienna. Helmer (standing) and Kéthly (on His Right).
MLA (8th ed.) CitationSI-bureau in Vienna. Helmer (standing) and Kéthly (on His Right).
Warning: These citations may not always be 100% accurate.