Cita APA (7th ed.)

Sackman, H. (1972). Online planning towards creative problem-solving. Prentice-Hall, Inc.

Cita Chicago (17th ed.)

Sackman, Harold. Online Planning Towards Creative Problem-solving. Englewood Cliffs, N.J: Prentice-Hall, Inc, 1972.

Cita MLA (9th ed.)

Sackman, Harold. Online Planning Towards Creative Problem-solving. Prentice-Hall, Inc, 1972.