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vol. 3, no. 2, p. 4

p. 127,200

vol. 8 no. 4 p. 3

no. 41, p. 1

(Occupational Monograph) (Various titles) vol. 2, no. 1, p. 2vol. 2, no. 4, p. 3vol. 6, no. 2, p. 4

(Occupational Monograph by Edward Ehlert) p. 19

p. 193

vol. 2, no. 1, p. 5

vol. 13, no. 4, p. 117 vol. 14, no. 1, p. 129

vol. 5, no. 2, p. 1 vol. 6, no. 2, p. 5