McPherson, J.E.
The First Record in Illinois of Brochymena punctata punctata (Hempitera: Pentatomidae)
McPherson, J.E.
The First Record in Illinois of Brochymena punctata punctata (Hempitera: Pentatomidae)
The Relation of Pure and Applied Physics Author: Hayford, John Fillmore
The Relation of Pure and Applied Science to the Progress of Knowledge and of Affairs Author: Cornelius Betten
The Relation of Pure and Applied Physics Author: Hayford, John Fillmore
The Relation of Pure and Applied Science to the Progress of Knowledge and of Affairs Author: Cornelius Betten