Cita APA (7th ed.)

Roylance, P., & Preston, F. (1983). Traveller's first aid handbook. The Reader's Digest Association Limited.

Cita Chicago (17th ed.)

Roylance, Peter, i Frank Preston. Traveller's First Aid Handbook. Londres: The Reader's Digest Association Limited, 1983.

Cita MLA (9th ed.)

Roylance, Peter, i Frank Preston. Traveller's First Aid Handbook. The Reader's Digest Association Limited, 1983.