Cita APA (7a ed.)

Tetzlaff, P. (1999). IBA Emscher Park. Summa+, 1998(34), .

Cita Chicago Style (17a ed.)

Tetzlaff, Patricia. "IBA Emscher Park." Summa+ 1998(34) (1999).

Cita MLA (9a ed.)

Tetzlaff, Patricia. "IBA Emscher Park." Summa+, vol. 1998(34), 1999.