The 76th Congress Public Laws ch. 792. ch. 583. ch. 579. ch. 527. ch. 494. ch. 444. ch. 342. ch. 253. ch. 136. ch. 131. ch. 601. ch. 449. ch. 281. ch. 255. ch. 236. ch. 42. ch. 40. ch. 39. ch. 37. ch. 8. ch. 7.