Cita APA (7th ed.)
Vosburgh, S., Popjes, S., Plunkett, J., Ames, J., Kennedy, J., De Lear, B., . . . Perkins, G. Hechos del siglo XX: 1960, 1970, 1980 = The Remarkable 20th Century : 1960's, 1970's, 1980's. Passport International.
Cita Chicago (17th ed.)
Vosburgh, Steven, Scott Popjes, John Plunkett, John Ames, Jesse Kennedy, Byron De Lear, Jimmy Hodson, Howard K. Smith, i Greg Perkins. Hechos Del Siglo XX: 1960, 1970, 1980 = The Remarkable 20th Century : 1960's, 1970's, 1980's. Los Angeles, EUA: Passport International.
Cita MLA (9th ed.)
Vosburgh, Steven, et al. Hechos Del Siglo XX: 1960, 1970, 1980 = The Remarkable 20th Century : 1960's, 1970's, 1980's. Passport International.
Atenció: Aquestes cites poden no estar 100% correctes.