Cita APA

Shew, P. (1980). Writing skills: A program for self-instruction. (2a. ed.). Estados Unidos: McGraw - Hill, Book Company.

Citación estilo Chicago

Shew, Phillip. Writing Skills: A Program for Self-instruction. 2a. ed. Estados Unidos: McGraw - Hill, Book Company, 1980.

Cita MLA

Shew, Phillip. Writing Skills: A Program for Self-instruction. 2a. ed. Estados Unidos: McGraw - Hill, Book Company, 1980.