Abs, R. Louis Bertrand 15.01.1856 - 17.06.1943. [S.l.]: [s.n.].
Chicago Style (17th ed.) CitationAbs, Robert. Louis Bertrand 15.01.1856 - 17.06.1943. [S.l.]: [s.n.].
MLA (8th ed.) CitationAbs, Robert. Louis Bertrand 15.01.1856 - 17.06.1943. [S.l.]: [s.n.].
Warning: These citations may not always be 100% accurate.