Lua APA (7ú heag.)

SISK, H. L., & WILLIAMS, J. C. (1981). Management and organization.-- Ed.4. South-Western.

Lua i Stíl Chicago (17ú heag.)

SISK, Henry L., agus J. Clifton WILLIAMS. Management and Organization.-- Ed.4. Cincinnati: South-Western, 1981.

Lua MLA (9ú heag.)

SISK, Henry L., agus J. Clifton WILLIAMS. Management and Organization.-- Ed.4. South-Western, 1981.

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