Cita APA (7th ed.)

Blowers, A. J. (1992). The Essentials of first aid (5th ed.). [s.n.].

Cita Chicago (17th ed.)

Blowers, A. J. The Essentials of First Aid. 5th ed. Nairobi: [s.n.], 1992.

Cita MLA (9th ed.)

Blowers, A. J. The Essentials of First Aid. 5th ed. [s.n.], 1992.