Παραπομπή APA

(1985). 12th International colloquium on the prevention of occupational risks in the construction undustry-safety in construction work human. Hamburg: ISSA International Social Security Association.

Παραπομπή Chicago Style

12th International Colloquium On the Prevention of Occupational Risks in the Construction Undustry-safety in Construction Work Human. Hamburg: ISSA International Social Security Association, 1985.

Παραπομπή MLA

12th International Colloquium On the Prevention of Occupational Risks in the Construction Undustry-safety in Construction Work Human. Hamburg: ISSA International Social Security Association, 1985.

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