occasional papers of the california academy of sciencesrobert o. schuster and michel m. j. lavoipierre · First published 1970Open the Tome
Tardigrada from the Galápagos and Cocos IslandsRobert O. Schuster · First published 1966Open the Tome
A revision of the genus Pselaptrichus Brendel (Coleoptera: Pselaphidae)Robert O. Schuster · First published 1956Open the Tome
