Futrell, C. M. (2007). ABC's of relationship selling through service. New York: McGraw-Hill.
Chicago-стиль цитированияFutrell, Charles M. ABC's of Relationship Selling Through Service. New York: McGraw-Hill, 2007.
MLA-цитированиеFutrell, Charles M. ABC's of Relationship Selling Through Service. New York: McGraw-Hill, 2007.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.