Dyfyniad APA

SPIEGEL, W. R. a. L. (1969). Industrial management.: 5th ed. Wiley & Sons.

Dyfyniad Arddull Chicago

SPIEGEL, William R. and LANSBURGH. Industrial Management.: 5th Ed. New York: Wiley & Sons, 1969.

Dyfyniad MLA

SPIEGEL, William R. and LANSBURGH. Industrial Management.: 5th Ed. Wiley & Sons, 1969.

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