Cita APA (7th ed.)

Donald, I. (1979). Practical obstetric problems (5th ed.). Lloyd-Luke (Medical Books).

Cita Chicago (17th ed.)

Donald, Ian. Practical Obstetric Problems. 5th ed. London: Lloyd-Luke (Medical Books), 1979.

Cita MLA (8th ed.)

Donald, Ian. Practical Obstetric Problems. 5th ed. Lloyd-Luke (Medical Books), 1979.