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41Published 1989“...Westview Press...”
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42
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43
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44
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45
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46Published 1994“...Westview-Press...”
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47
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48
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49
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50
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51Published 1991“...Westview Press...”
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52
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53
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54Published 1992“...Westview-Press...”
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55Published 1993“...Westview Press...”
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56
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57
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58
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59
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60