Cita APA (7a ed.)

Boll, C. (2009). HWWI Research Paper. HWWI.

Cita Chicago Style (17a ed.)

Boll, Christina. HWWI Research Paper. Hamburg: HWWI, 2009.

Cita MLA (8a ed.)

Boll, Christina. HWWI Research Paper. HWWI, 2009.