APA (7e ed.) Bronvermelding

Glass, J. C., & Johnson, W. j. a. (1989). Economics: Progression, stagnation, or degenerationn. Wheatsheaf.

Chicago (17e ed.) Bronvermelding

Glass, J. Colin, en W. joint author Johnson. Economics: Progression, Stagnation, or Degenerationn. New York: Wheatsheaf, 1989.

MLA (9e ed.) Bronvermelding

Glass, J. Colin, en W. joint author Johnson. Economics: Progression, Stagnation, or Degenerationn. Wheatsheaf, 1989.