Gaya APA

Tough, J. (1973). Focus On Meaning : Talking to some purpose with young children. . London: Pusat Pengembangan Pendidikan Nonformal dan Informal Regional I.

Gaya MLA

Tough, Joan. "Focus On Meaning : Talking to some purpose with young children.". London: Pusat Pengembangan Pendidikan Nonformal dan Informal Regional I, 1973. Textbook.