Cita APA (7th ed.)
First Aid: First on the Scene : Activity Book. St. John Ambulance.
Cita Chicago (17th ed.)
First Aid: First on the Scene : Activity Book. Ottawa, Canadá: St. John Ambulance.
Cita MLA (9th ed.)
First Aid: First on the Scene : Activity Book. St. John Ambulance.
Atenció: Aquestes cites poden no estar 100% correctes.