Cita APA

Crosby, E. U., & Webb, C. R. (1973). The Past as Prologue: Sources and Studies in European Civilizationn. Appleton-Century-Crofts.

Chicago Edition Citation

Crosby, Everett Uberto, i Charles R. Webb. The Past as Prologue: Sources and Studies in European Civilizationn. New York: Appleton-Century-Crofts, 1973.

Cita MLA

Crosby, Everett Uberto, i Charles R. Webb. The Past as Prologue: Sources and Studies in European Civilizationn. Appleton-Century-Crofts, 1973.