APA استشهاد

Schreiber, A. F., Gatons, P. K., & Clemmer, R. B. (1971). Economics of urban problems: :an introduction. Houghton.

استشهاد بنمط شيكاغو

Schreiber, Arthur F., Paul K. Gatons, و Richard B. Clemmer. Economics of Urban Problems: :an Introduction. Boston: Houghton, 1971.

MLA استشهاد

Schreiber, Arthur F., et al. Economics of Urban Problems: :an Introduction. Houghton, 1971.