Bell, D. (1968). Toward the Year 2000: Work in Progress. Boston: Houghton Mifflin Company.
Chicago Style CitationBell, Daniel. Toward the Year 2000: Work in Progress. Boston: Houghton Mifflin Company, 1968.
Cita MLABell, Daniel. Toward the Year 2000: Work in Progress. Boston: Houghton Mifflin Company, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.