Shurter, R. L., & Nichols, F. G. (1948). Effective letters in business. McGraw-Hill Book Co.
Chicago-стиль цитированияShurter, Robert L., and Frederick George Nichols. Effective Letters in Business. New York: McGraw-Hill Book Co, 1948.
MLA-цитированиеShurter, Robert L., and Frederick George Nichols. Effective Letters in Business. McGraw-Hill Book Co, 1948.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.