1. ed. 1965. BMD: Biomedical Computer Programs. Los Angeles, CA: School of Medicine, UCLA; 1965.
2. The development of a semantic differential to assess users' attitudes towards an on-line interactive reference retrieval system
3. 1974. Guide to LERTAP Use and Interpretation. Dunedin, New Zealand: University of Otago; 1974 April.
4. ; ; 1957. The Measurement of Meaning. Urbana, IL: University of Illinois Press; 1957.
5. ; 1973. C. Group. Vancouver, BC: University of British Columbia; 1973 April (revised).