Petrocelly, K. L. (1994). Managing physical plant operations. Fairmont Press.
Lua i Stíl Chicago (17ú heag.)Petrocelly, K. L. Managing Physical Plant Operations. Lilburn, GA: Fairmont Press, 1994.
Lua MLA (9ú heag.)Petrocelly, K. L. Managing Physical Plant Operations. Fairmont Press, 1994.
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