Lua APA (7ú heag.)

Não informado. (1988). Service report: Power plants, maintenance, upgrading. Siemens AG.

Lua i Stíl Chicago (17ú heag.)

Não informado. Service Report: Power Plants, Maintenance, Upgrading. Erlangen, Alemanha: Siemens AG, 1988.

Lua MLA (8ú heag.)

Não informado. Service Report: Power Plants, Maintenance, Upgrading. Siemens AG, 1988.

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