APA

Railroad accident report 81-5, . (1981). Derailment of Amtrak Train No.21 the Inter-American on the Illinois Central Gulf Railroad, Springfield, Illinois , Oct.30, 1980. Washington DC: National Transportation Safety Board.

Chicago

Railroad accident report 81-5, . 1981. Derailment of Amtrak Train No.21 the Inter-American on the Illinois Central Gulf Railroad, Springfield, Illinois , Oct.30, 1980. Washington DC: National Transportation Safety Board.

Harvard

Railroad accident report 81-5, . (1981). Derailment of Amtrak Train No.21 the Inter-American on the Illinois Central Gulf Railroad, Springfield, Illinois , Oct.30, 1980. Washington DC: National Transportation Safety Board.

MLA

Railroad accident report 81-5, . Derailment of Amtrak Train No.21 the Inter-American on the Illinois Central Gulf Railroad, Springfield, Illinois , Oct.30, 1980. Washington DC: National Transportation Safety Board. 1981.