de Boer, R. W., Ettema, G, Faessen, B. G., Krekels, H, Hollander, A. P., de Groot, G. & van Ingen Schenau, G. J. (1987). Specific characteristics of speed skating: Implications for summer training. Medicine & Science in Sports & Exercise, 19 (5), 504-510.
APA (7th ed.) Citationde Boer, R. W., Ettema, G., Faessen, B. G., Krekels, H., Hollander, A. P., de Groot, G., & van Ingen Schenau, G. J. (1987). Specific characteristics of speed skating: Implications for summer training. Medicine & Science in Sports & Exercise, 19(5), 504-510.
Chicago Style (17th ed.) Citationde Boer, R. W., G. Ettema, B. G. Faessen, H. Krekels, A. P. Hollander, G. de Groot, and G. J. van Ingen Schenau. "Specific Characteristics of Speed Skating: Implications for Summer Training." Medicine & Science in Sports & Exercise 19, no. 5 (1987): 504-510.
MLA (9th ed.) Citationde Boer, R. W., et al. "Specific Characteristics of Speed Skating: Implications for Summer Training." Medicine & Science in Sports & Exercise, vol. 19, no. 5, 1987, pp. 504-510.