Occhiogrosso, J. (1994). Clipper power utilities. Windcrest/McGraw-Hill.
Chicago-čujuhus (17. p.)Occhiogrosso, James. Clipper Power Utilities. New York: Windcrest/McGraw-Hill, 1994.
MLA-čujuhus (9. p.)Occhiogrosso, James. Clipper Power Utilities. Windcrest/McGraw-Hill, 1994.
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