Goldmann, H. M. (1971). How To Win Customers Heinz M. Goldmann. Pan Book.
Citación estilo ChicagoGoldmann, Heinz M. How To Win Customers Heinz M. Goldmann. Pan Book, 1971.
Cita MLAGoldmann, Heinz M. How To Win Customers Heinz M. Goldmann. Pan Book, 1971.
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