Rossnagel, W. E., Higgins, L. R., MacDonald, J. A., & Higgings, L. R. (1988). Handbook of rigging: For construction and industrial operations (4th ed.). New York ; St. Louis: McGraw-Hill.
Παραπομπή Chicago StyleRossnagel, W. E., Lindley R. Higgins, Joseph A. MacDonald, and Lindley R. Higgings. Handbook of Rigging: For Construction and Industrial Operations. 4th ed. New York ; St. Louis: McGraw-Hill, 1988.
Παραπομπή MLARossnagel, W. E., Lindley R. Higgins, Joseph A. MacDonald, and Lindley R. Higgings. Handbook of Rigging: For Construction and Industrial Operations. 4th ed. New York ; St. Louis: McGraw-Hill, 1988.
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