Warren, E. K. (1966). Long-range planning: The executive view-point. Prentice-Hall.
Chicago Style (17. basım) AtıfWarren, E. Kirby. Long-range Planning: The Executive View-point. Englewood Cliffs, N.J.: Prentice-Hall, 1966.
MLA (9th ed.) AtıfWarren, E. Kirby. Long-range Planning: The Executive View-point. Prentice-Hall, 1966.
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