Cita APA (7th ed.)

FitzRoy, F., Nolan, M., & Steinhardt, M. F. (2011). HWWI Research Paper. HWWI.

Cita Chicago (17th ed.)

FitzRoy, Felix, Michael Nolan, i Max Friedrich Steinhardt. HWWI Research Paper. Hamburg: HWWI, 2011.

Cita MLA (8th ed.)

FitzRoy, Felix, et al. HWWI Research Paper. HWWI, 2011.