1. A two dimensional semantic differential;Allison;J. consult. Psychol.,1963
2. Bellugi , Ursula Brown , R. W. The acquisition of language Monogr. Soc. Res. Child Develpm. 1964 29 No. 1
3. Studies in the phenomenology of emotions;Block;J. abnorm. soc. Psychol.,1957
4. On learning the grammatical order of words;Braine;Psychol. Rev.,1963