Black, E., & Black, E. (1971). Churchill (3. edición.). Barcelona: Grijalbo.
Chicago Style CitationBlack, Edgar, and Edgar Black. Churchill. 3. edición. Barcelona: Grijalbo, 1971.
MLA CitationBlack, Edgar, and Edgar Black. Churchill. 3. edición. Barcelona: Grijalbo, 1971.
Warning: These citations may not always be 100% accurate.