Puchstein, A. F., Lloyd, T. C., & Conrad, A. G. (1954). Alternating-current machines (3d. ed.). John Wiley & sons.

Puchstein, Albert Frederick, T. C. Lloyd, and A. G. Conrad. Alternating-current Machines. 3d. ed. New York: John Wiley & sons, 1954.

Puchstein, Albert Frederick, et al. Alternating-current Machines. 3d. ed. John Wiley & sons, 1954.