Lyden, F. J., & Miller, E. G. (1972). Planning, programming, budgeting; a systems approach to management (2nd ed.). Markham Pub.
Cita Chicago (17th ed.)Lyden, Fremont J., i Ernest G. Miller. Planning, Programming, Budgeting; a Systems Approach to Management. 2nd ed. Chicago: Markham Pub, 1972.
Cita MLA (9th ed.)Lyden, Fremont J., i Ernest G. Miller. Planning, Programming, Budgeting; a Systems Approach to Management. 2nd ed. Markham Pub, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.