Overview The First 72 Hours PDF is a book by Margaret R. O’Leary, a registered nurse and emergency preparedness expert. The book was published by Simon & Schuster on May 21, 2019. The First 72 Hours is a comprehensive guide to preparing...
Overview The First 72 Hours PDF is a book by Margaret R. O’Leary, a registered nurse and emergency preparedness expert. The book was published by Simon & Schuster on May 21, 2019. The First 72 Hours is a comprehensive guide to preparing...
