(1972). Managing the planet. Englewood Cliffs, N.J.: Prentice-Hall.
Chicago Style CitationManaging the Planet. Englewood Cliffs, N.J.: Prentice-Hall, 1972.
Cita MLAManaging the Planet. Englewood Cliffs, N.J.: Prentice-Hall, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.