Gaya APA

Mars, B. (1999). E-BOOK Natural First Aid: Herbal Treatments for Ailments & Injuries, Emergency Preparedness, Wilderness Safety . united states: Storey Communications.

Gaya MLA

Mars, Brigitte. "E-BOOK Natural First Aid: Herbal Treatments for Ailments & Injuries, Emergency Preparedness, Wilderness Safety". united states: Storey Communications, 1999. Text.