Cita APA (7th ed.)

Pfeiffer, W. (1980). Walter Pfeiffer (1970-1980). Betzel.

Cita Chicago (17th ed.)

Pfeiffer, Walter. Walter Pfeiffer (1970-1980). Frankfurt (Main): Betzel, 1980.

Cita MLA (8th ed.)

Pfeiffer, Walter. Walter Pfeiffer (1970-1980). Betzel, 1980.