- 1950[subject unknown]Beginners
- 1951[subject unknown]Beginning Investigators
- 1952[subject unknown]Beginners
- 1957[subject unknown]Independent
- 1958[subject unknown]Independent
- 1959[subject unknown]Independent
- 1960[subject unknown]Independent
- 1961[subject unknown]Independent
- 1962[subject unknown]Independent
- 1963[subject unknown]Independent
- 1964[subject unknown]Independent
- 1965[subject unknown]Independent
- 1966[subject unknown]Independent
- 1968[subject unknown]Independent
- 1969[subject unknown]Independent
- 1970[subject unknown]Independent
- 1971[subject unknown]Library Readers
- 1984[subject unknown]Library Readers
- 1985[subject unknown]Library Readers
- 1990[subject unknown]Library Readers: Desks
- 1991[subject unknown]Library Readers: Desk
- 1995[subject unknown]Library Readers
- 1998[subject unknown]Library Readers