APA استشهاد

Brown, A., & Burrows, E. (1977). Regional economic problems. George Allen &Unwin.

استشهاد بنمط شيكاغو

Brown, A.J, و E.M Burrows. Regional Economic Problems. London: George Allen &Unwin, 1977.

MLA استشهاد

Brown, A.J, و E.M Burrows. Regional Economic Problems. George Allen &Unwin, 1977.