Gaya APA
Scher, I, S. et al (2017).
Snow sports trauma and safety :conference proceedings of the International Society for Skiing Safety: 21st volume .
Cham, Switzerland:
Springer Open.
Gaya MLA
Scher, Irving, S.. et al.
"Snow sports trauma and safety :conference proceedings of the International Society for Skiing Safety: 21st volume".
Cham, Switzerland:
Springer Open,
2017.
Text.