Keefer, L. E. (1966). Urban travel patterns for airports, shopping centers, and industrial plants. Highway Research Board, Division of Engineering, National Research Council, National Academy of Science.
Chicagoスタイル(17版)引用形式Keefer, Louis E. Urban Travel Patterns for Airports, Shopping Centers, and Industrial Plants. Washington: Highway Research Board, Division of Engineering, National Research Council, National Academy of Science, 1966.
MLA(9版)引用形式Keefer, Louis E. Urban Travel Patterns for Airports, Shopping Centers, and Industrial Plants. Highway Research Board, Division of Engineering, National Research Council, National Academy of Science, 1966.
警告: この引用は必ずしも正確ではありません.