O’Brien, P. (2010). Little Red Sled (1–). https://oaks.kent.edu/node/9563
O’Brien, Patrick. 2010. “Little Red Sled”. https://oaks.kent.edu/node/9563.
O’Brien, Patrick. Little Red Sled. 1 Apr. 2010, https://oaks.kent.edu/node/9563.