Cita APA (7th ed.)

Twining, P., McHugo, J. M., & Pilling, D. W. (2000). Textbook of fetal abnormalities. Churchill Livingstone.

Cita Chicago (17th ed.)

Twining, Peter, Josephine M. McHugo, i David W. Pilling. Textbook of Fetal Abnormalities. London: Churchill Livingstone, 2000.

Cita MLA (9th ed.)

Twining, Peter, et al. Textbook of Fetal Abnormalities. Churchill Livingstone, 2000.