Transcription:
FOLSOM, J[ustus] W[atson]
[Lool.
Insekt.
Nearctic Gollembola or springtails, of the family Isotomidae. [Ill.]
8:o Washington 1937.
Se: United States national museum. Bulletin. 168.
Acta
N. Amer.
Washington. U. S. nat. mus.