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41
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42
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43
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44by Judson, Lewis Van Hagen, 1893-“...United States National Bureau of Standards ;...”
Published 1956
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45
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46by Roeser, William Frederick, 1901-“...United States National Bureau of Standards ;...”
Published 1958
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47
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48by Hughes, John Chapman, 1908-“...United States National Bureau of Standards ;...”
Published 1959
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49
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50
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51
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52
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53
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54
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55
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56
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57by Mann, W. B. (Wilfrid Basil), 1908-“...United States National Bureau of Standards ;...”
Published 1958
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58
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59
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60Published 1957“...United States National Bureau of Standards ;...”
Book