1) Walker, Robert (Robert Mark) Pass the 6
2) Walker, Robert, 1945- Color is power
3) Walker, Robert W. Search for the Nile
4) Walker, Robert, 1945- New York inside out
5) Walker, Robert, 1922-2007. Painters in the Australian landscape
6) Walker, Robert, 1936- Music education
7) Walker, Robert, M.D. An inquiry, into the small-pox, medical and political;
8) Walker, Robert W. (Robert Wayne), 1948- City of the absent
9) Walker, Robert, 1716-1783. Sermons on practical subjects /
10) Matthew-Walker, Robert 1939- Rachmaninoff
11) Robert Walker, fl. 1750 The Female Soldier
12) Robert Walker, fl. 1898 - Memorial catalogue of the Burns Exhibition ...
13) Robert Walker, 1946 - New Novello Part-Song Book
14) Walker, Robert 1949- Social Security and Welfare
