Harrison, L. L., Harrison, L. L., & Harrison, L. (1995). Environmental, health, and safety auditing handbook (2nd ed.). New York: McGraw-Hill.
Παραπομπή Chicago StyleHarrison, L. Lee, L. Lee Harrison, and Lee Harrison. Environmental, Health, and Safety Auditing Handbook. 2nd ed. New York: McGraw-Hill, 1995.
Παραπομπή MLAHarrison, L. Lee, L. Lee Harrison, and Lee Harrison. Environmental, Health, and Safety Auditing Handbook. 2nd ed. New York: McGraw-Hill, 1995.
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