Species, formae, combinationes novae a Prof. de Soo 1921-1939 descriptae. [s.l.]: [s.n.].
Chicago Style CitationSpecies, Formae, Combinationes Novae a Prof. De Soo 1921-1939 Descriptae. [s.l.]: [s.n.].
MLA CitationSpecies, Formae, Combinationes Novae a Prof. De Soo 1921-1939 Descriptae. [s.l.]: [s.n.].
Warning: These citations may not always be 100% accurate.