Gaya APA

Clarke, A, M. et al (c1985). Mental deficiency : the changing outlook / edited by Ann M. Clarke, Alan D.B. Clarke and Joseph M. Berg (4th ed.). London: Methuen.

Gaya MLA

Clarke, Ann, M.. et al. "Mental deficiency : the changing outlook / edited by Ann M. Clarke, Alan D.B. Clarke and Joseph M. Berg". 4th ed. London: Methuen, c1985. Buku.