Goff, R. D., Cassar, G. H., Esler, . A., Holoka, J. P., & Waltz, J. C. (1987). Instructor's manual for a survey of Western civilization (Combined Edition.). West Publishing Company.
Chicago Style (17th ed.) ZitazioaGoff, Richard D., George H. Cassar, Anthony Esler, James P. Holoka, eta James C. Waltz. Instructor's Manual for a Survey of Western Civilization. Combined Edition. New york: West Publishing Company, 1987.
MLA (9th ed.) ZitazioaGoff, Richard D., et al. Instructor's Manual for a Survey of Western Civilization. Combined Edition. West Publishing Company, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.