IBM. (1989). Device support facilities: User's guide and reference (13a. ed.). New York: IBM.
Citación estilo ChicagoIBM. Device Support Facilities: User's Guide and Reference. 13a. ed. New York: IBM, 1989.
Cita MLAIBM. Device Support Facilities: User's Guide and Reference. 13a. ed. New York: IBM, 1989.
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