APA-referens (7:e uppl.)

Lippitt, V. G. (1975). The national economic environment \. McGraw-Hill.

Chicago-referens (17:e uppl.)

Lippitt, Vernon G. The National Economic Environment \. New York: McGraw-Hill, 1975.

MLA-referens (8:e uppl.)

Lippitt, Vernon G. The National Economic Environment \. McGraw-Hill, 1975.