Cita APA (7th ed.)

Willett, R. (1980). The open cage - american film (1935 - 1960). Univ..

Cita Chicago (17th ed.)

Willett, Ralph. The Open Cage - American Film (1935 - 1960). Siegen: Univ., 1980.

Cita MLA (8th ed.)

Willett, Ralph. The Open Cage - American Film (1935 - 1960). Univ., 1980.