APA   Click to copy
Zipfel, B. (1997). Forefoot varus and its influence on subtalar joint pronation. South African Journal of Sports Medicine, 4, 4–5.

Chicago/Turabian   Click to copy
Zipfel, B. “Forefoot Varus and Its Influence on Subtalar Joint Pronation.” South African Journal of Sports Medicine 4 (1997): 4–5.

MLA   Click to copy
Zipfel, B. “Forefoot Varus and Its Influence on Subtalar Joint Pronation.” South African Journal of Sports Medicine, vol. 4, 1997, pp. 4–5.

@article{b1997a,
  title = {Forefoot varus and its influence on subtalar joint pronation},
  year = {1997},
  journal = {South African Journal of Sports Medicine},
  pages = {4-5},
  volume = {4},
  author = {Zipfel, B.}
}