
- Author: Daniel H. Garrison
- Language: English
- Year: 1978

- Author: Jørgen Mejer
- Language: English
- Year: 1978

- Author: John Douglas Minyard
- Language: English
- Year: 1978

- Author: Karl Büchner
- Language: German
- Year: 1976

- Author: Walter Wimmel
- Language: German
- Year: 1976

- Author: David Sansone
- Language: English
- Year: 1975

- Author: Felix Preisshofen
- Language: German
- Year: 1977

- Author: Konrad Heldmann
- Language: German
- Year: 1974

- Author: Hunter R. Rawlings
- Language: English
- Year: 1975

- Author: Joachim Adamietz
- Language: German
- Year: 1972