Riegel, E. R. (1953). Chemical process machinery (2a. ed.). Reinhold.
Tohutoru Kātū Chicago (17th ed.)Riegel, Emil Raymond. Chemical Process Machinery. 2a. ed. Nueva York: Reinhold, 1953.
Tohutoro MLA (9th ed.)Riegel, Emil Raymond. Chemical Process Machinery. 2a. ed. Reinhold, 1953.
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