Robert A. Harper has written at least 3 books. Their most popular book is A New Guide to Rational Living with 7 saves with an average rating of -⭐.
They are best known for writing in the genre Family & Relationships.
1961 • 7 Readers • 233 pages
2001 • 1 Reader • 240 pages • 4
2001 • 1 Reader • 304 pages • 5