Cita APA (7th ed.)

Gibbons, R., Wilkie, A., Weatherall, D., & Higgs, D. (1991). A newly defined X linked mental retardation syndrome associated with alpha thalassaemia.

Cita Chicago (17th ed.)

Gibbons, R., A. Wilkie, D. Weatherall, i D. Higgs. A Newly Defined X Linked Mental Retardation Syndrome Associated with Alpha Thalassaemia. 1991.

Cita MLA (9th ed.)

Gibbons, R., et al. A Newly Defined X Linked Mental Retardation Syndrome Associated with Alpha Thalassaemia. 1991.