Hughston, J., Andrews, J., Cross, M., & Moschi, A. (1976). Classification of knee ligament instabilities. Part I. The medial compartment and cruciate ligaments. Journal of bone and joint surgery / A, American volume, 58(2), S. 159-172.

Hughston, J.C., J.R Andrews, M.J Cross, and A. Moschi. "Classification of Knee Ligament Instabilities. Part I. The Medial Compartment and Cruciate Ligaments." Journal of Bone and Joint Surgery / A, American Volume 58, no. 2 (1976): S. 159-172.

Hughston, J.C., J.R Andrews, M.J Cross, and A. Moschi. "Classification of Knee Ligament Instabilities. Part I. The Medial Compartment and Cruciate Ligaments." Journal of Bone and Joint Surgery / A, American Volume 58.2 (1976): S. 159-172.