Control Tower by Robert P. Davis (1981, Mass Market)

Crooked Tree by Robert C. Wilson Berkeley Horror Paperback 1981 READ

Fatal Glimpse By Robert K Wilcox 1981 Vintage Paperback Horror

Horoscope Symbols By. Robert Hand Paperback 1981 Second Printing

Mathematics In Our World - California Series By Robert Eicholz 1981 Paperback

Eisenhower and the Cold War by Robert A. Divine (1981, Trade Paperback)

Peter the Great: His Life and World by Robert K. Massie (1981, Trade Paperback)

The Moon Is a Harsh Mistress by Robert A. Heinlein - Berkley Paperback 1981