Revisio synoptica apum borealium, comparatis speciebus Europae mediae
By: auctore William Nylander
Published: 1852
Place of publication: Helsingfors
Language: lat
Number of pages: 286
Other titles: Revisio apum borealium
Notes: Notiser ur Sällskapets pro Fauna et Flora Fennica Förhandlingar, 1852, ii, p. [225]-286.

"Societ. Scient. exhib. die 8 Dec. 1851."