APA

Gustafson R., Golob T., . (1972). Hierarchical urban information system and its applications to transportation systems analysis. Warren, MI: General Motors Corp. Research Laboratories. Research publication GMR-1235.

Chicago

Gustafson RL, Golob TF, . 1972. Hierarchical urban information system and its applications to transportation systems analysis. Warren, MI: General Motors Corp. Research Laboratories. Research publication GMR-1235.

Harvard

Gustafson R., Golob T., . (1972). Hierarchical urban information system and its applications to transportation systems analysis. Warren, MI: General Motors Corp. Research Laboratories. Research publication GMR-1235.

MLA

Gustafson RL, Golob TF, . Hierarchical urban information system and its applications to transportation systems analysis. Warren, MI: General Motors Corp. Research Laboratories. Research publication GMR-1235. 1972.