Peterson, P. W. (2003). Developing writing: Writing skills practice book for EFL : beginning/intermediate level. United States Department of State.
Citação do estilo Chicago (17ª ed.)Peterson, Patricia Wilcox. Developing Writing: Writing Skills Practice Book for EFL : Beginning/intermediate Level. Washington, DC: United States Department of State, 2003.
Citação MLA (9ª ed.)Peterson, Patricia Wilcox. Developing Writing: Writing Skills Practice Book for EFL : Beginning/intermediate Level. United States Department of State, 2003.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.