Cita APA (7th ed.)

Enrick, N. L. (1967). Management planning: A systems approach. McGraw-Hill.

Cita Chicago (17th ed.)

Enrick, Norbert Lloyd. Management Planning: A Systems Approach. New York: McGraw-Hill, 1967.

Cita MLA (9th ed.)

Enrick, Norbert Lloyd. Management Planning: A Systems Approach. McGraw-Hill, 1967.