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41Published 1989“...HD 5811.85 .A6 .U72...”
Book -
42Published 1991“...HT 127.5 .A881...”
Book -
43
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44
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45
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46Published 1992“...HF 3230.5 .A46 .F714...”
Conference Proceeding Book -
47Published 1993“...HQ 1236.5 .L37 .V855...”
Book -
48
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49
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50
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51Published 1992“...HX 110.5 .A6 .M392 t...”
Book -
52
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53
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54Published 1988“...HN 981 .S6 .N532...”
Book -
55
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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