APA (7th ed.) Citation

St John Ambulance Association and Brigade. (1972). Essentials of first aid: An authorised manual of St John Ambulance (2nd ed.). St John Ambulance Association.

Chicago Style (17th ed.) Citation

St John Ambulance Association and Brigade. Essentials of First Aid: An Authorised Manual of St John Ambulance. 2nd ed. London: St John Ambulance Association, 1972.

MLA (9th ed.) Citation

St John Ambulance Association and Brigade. Essentials of First Aid: An Authorised Manual of St John Ambulance. 2nd ed. St John Ambulance Association, 1972.