Παραπομπή APA

McElroy, F. E. (1980). Accident prevention manual for industrial operations (8th ed.). [Chicago, IL.]: National Safety Council.

Παραπομπή Chicago Style

McElroy, Frank E. Accident Prevention Manual for Industrial Operations. 8th ed. [Chicago, IL.]: National Safety Council, 1980.

Παραπομπή MLA

McElroy, Frank E. Accident Prevention Manual for Industrial Operations. 8th ed. [Chicago, IL.]: National Safety Council, 1980.

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