Fernald, R. H., & Orrok, G. A. (1921). Engineering of power plants (2d ed.). McGraw-Hill book Co..
Lua i Stíl Chicago (17ú heag.)Fernald, R. H., agus George Alexander Orrok. Engineering of Power Plants. 2d ed. New York [etc.]: McGraw-Hill book Co., 1921.
Lua MLA (8ú heag.)Fernald, R. H., agus George Alexander Orrok. Engineering of Power Plants. 2d ed. McGraw-Hill book Co., 1921.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.