Cita APA (7th ed.)

Ricker, E. R. (1948). The traffic design of parking garages. Eno Foundation for Highway Traffic Control.

Cita Chicago (17th ed.)

Ricker, Edmund R. The Traffic Design of Parking Garages. Saugatuck, Conn: Eno Foundation for Highway Traffic Control, 1948.

Cita MLA (9th ed.)

Ricker, Edmund R. The Traffic Design of Parking Garages. Eno Foundation for Highway Traffic Control, 1948.