24: Piper, 1984. Hardcover. Text in German. 453, 440, 440 and 505 pp. Dust jackets slightly stained. Does not contain Volume 5. 4 Volumes : Gesammelte Werke = Collected Works. Abteilung C : Allgemeinverständliche Schriften = Philosophical and Popular Writings, Bd. 1 : Physik und Erkenntnis 1927-1955.....
12: Aalto University, School of Chemical Technology, Department of Material Science and Engineering, 2013. Soft Cover. Text in English. 90 pp. Acid mine drainage has long been a significant environmental problem in coal and metal sulfide mining. The demand for the recycling and reuse of materials has increased significantly.....
32: Jaakko Leppinen, 1986. Soft Cover. Text in English. 124 pp. Couple stains on front cover.
32: Societas scientiarum Fennica, 1972. Soft Cover. Text in English. 161 pp.
32: Springer, 1992. Hardcover. Text in German. 275 pp. Former owners name on the front free endpaper.
32: Physics Foundations Society, 2018. 4th Edition. Hardcover. Text in English. 309 pp.