Authors: R
- Robert Liparulo (6)
- Robert Lipsyte (4)
- Robert Littell (6)
- Robert Livingston (1)
- Robert Lloyd (6)
- Robert Loggia (3)
- Robert Long (3)
- Robert Longo (5)
- Robert Lopez (9)
- Robert Lorenz (2)
- Robert Louis Stevenson (377)
- Robert Loveman (4)
- Robert Low (1)
- Robert Lowell (21)
- Robert Lowie (1)
- Robert Lowry (2)
- Robert Lowth (1)
- Robert Lucas, Jr. (2)
- Robert Ludlum (31)
- Robert Luna (1)
- Robert Luskin (5)
- Robert Lutz (2)
- Robert Lynd (2)
- Robert M (1)
- Robert M Fresco (2)
- Robert M Gates (1)
- Robert M Hensel (1)
- Robert M Hutchins (1)
- Robert M Parker Jr (1)
- Robert M Pirsig (9)
- Robert M Young (1)
- Robert M. Edsel (1)
- Robert M. Fresco (3)
- Robert M. Gates (48)
- Robert M. Hayes (1)
- Robert M. Hensel (39)
- Robert M. Hutchins (34)
- Robert M. La Follette (1)
- Robert M. La Follette, Sr. (9)
- Robert M. Lindner (13)
- Robert M. Parker, Jr. (25)
- Robert M. Pirsig (128)
- Robert M. Price (9)
- Robert M. Sapolsky (20)
- Robert M. Schoch (1)
- Robert M. T. Hunter (2)
- Robert M. Utley (1)
- Robert MacArthur (2)
- Robert Macfarlane (12)
- Robert MacNeil (18)