Radio Waves and the Ionosphere by T. W. Bennington
81 pages. No dust jacket. This is an ex-Library book. Red cloth with black and white illustrations throughout. Expected library inserts, stamps and inscriptions. Moderate tanning to pages with slight dog-eared pages throughout and visible tanning to text block edges. Boards have minor rubbing and visible bumping to corners. Pen inscription to front and moderate crushing to spine ends as well.