Cita APA (7a ed.)

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.

Cita Chicago Style (17a ed.)

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.

Cita MLA (9a ed.)

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.