APA引文

Modell, B., Petrou, M., Layton, M., Varnavides, L., Slater, C., Ward, R. H., . . . Old, J. (1997). Audit of prenatal diagnosis for haemoglobin disorders in the United Kingdom: The first 20 years.

Citação norma Chicago

Modell, B., et al. Audit of Prenatal Diagnosis for Haemoglobin Disorders in the United Kingdom: The First 20 Years. 1997.

MLA引文

Modell, B., et al. Audit of Prenatal Diagnosis for Haemoglobin Disorders in the United Kingdom: The First 20 Years. 1997.