Title: Carolus Linnaeus Systema naturae, 1735
Subtitle: Facsimile of the 1st ed.  With an introd. and a first English translation of the "Observationes," by M. S. J. Engel-Ledeboer and H. Engel.
First published: 1964
Subjects: Natural history, Classification
LC classification: QH43 S73 1735A