Gaya APA

Chiri, J, A. (1987). Houghton Mifflin Typewriting: Keybord Mastery And Applications; Student Activities Lessons 151 - 225 . Boston: Houhton Mifflin Company.

Gaya MLA

Chiri, Judith, A. "Houghton Mifflin Typewriting: Keybord Mastery And Applications; Student Activities Lessons 151 - 225". Boston: Houhton Mifflin Company, 1987. Text.