APA-referens (7:e uppl.)

Smith, G. J. (1917). Longmans' English lessons. Longmans, Green and Co..

Chicago-referens (17:e uppl.)

Smith, George James. Longmans' English Lessons. New York ; Chicago: Longmans, Green and Co., 1917.

MLA-referens (8:e uppl.)

Smith, George James. Longmans' English Lessons. Longmans, Green and Co., 1917.