St. John Ambulance. (1983). First Aid Safety Oriented (primera edición.). St. John Ambulance.
Chicago Style (17th ed.) CitationSt. John Ambulance. First Aid Safety Oriented. primera edición. Ottawa, Canada: St. John Ambulance, 1983.
MLA (9th ed.) CitationSt. John Ambulance. First Aid Safety Oriented. primera edición. St. John Ambulance, 1983.
Warning: These citations may not always be 100% accurate.