Hassler, É. (1907). Plantae Paraguarienses novae vel minus cognitae ([Sonderdr.].).
Chicago Style (17th ed.) CitationHassler, Émile. Plantae Paraguarienses Novae Vel Minus Cognitae. [Sonderdr.]. 1907.
MLA (9th ed.) CitationHassler, Émile. Plantae Paraguarienses Novae Vel Minus Cognitae. [Sonderdr.]. 1907.
Warning: These citations may not always be 100% accurate.