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51
Duncan, Douglas., 842.9-D911b
| Cambridge University Press |
1979
842.9-D911b,
52
Duncan, W.Raymond, 349.9295-D912m
| Westview Press |
1990
349.9295-D912m,
53
Michael, Duncan, 549.79-M621h
| Facts On File Publications |
1989
549.79-M621h,
54
Kessler, Lauren, 745-K42w
| A Division of Wadsworth |
1984
745-K42w,
55
Duncan, Graeme, 340.22-D911d
| Cambridge University Press |
1983
340.22-D911d,
