Guthrie, A., & Wakerling, R. K. (1949). Vacuum equipment and techniques. New York: McGraw-Hill Book.
Citación estilo ChicagoGuthrie, A., and R. K. Wakerling. Vacuum Equipment and Techniques. New York: McGraw-Hill Book, 1949.
Cita MLAGuthrie, A., and R. K. Wakerling. Vacuum Equipment and Techniques. New York: McGraw-Hill Book, 1949.
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