Peterson, P. W. (2003). Developing writing: Writing skill practice book for EFL. U.S: United States Infomation Agency (USIA).
Chicago-стиль цитированияPeterson, Patricia Wilcox. Developing Writing: Writing Skill Practice Book for EFL. U.S: United States Infomation Agency (USIA), 2003.
MLA-цитированиеPeterson, Patricia Wilcox. Developing Writing: Writing Skill Practice Book for EFL. U.S: United States Infomation Agency (USIA), 2003.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.