Helsdingen, P. J. v. (1973). A recapitulation of the Nearctic species of Centromerus Dahl (Araneida, Linyphiidae) with remarks on Tunagyna Debilis (Banks). Brill.
Chicago-Zitierstil (17. Ausg.)Helsdingen, P. J. van. A Recapitulation of the Nearctic Species of Centromerus Dahl (Araneida, Linyphiidae) with Remarks on Tunagyna Debilis (Banks). Leiden: Brill, 1973.
MLA-Zitierstil (9. Ausg.)Helsdingen, P. J. van. A Recapitulation of the Nearctic Species of Centromerus Dahl (Araneida, Linyphiidae) with Remarks on Tunagyna Debilis (Banks). Brill, 1973.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.