Harston PD Library – Utilities (19xx)(J.G. Harston)(JGH-18)[various Start]
Harston PD Library – Utilities (19xx)(J.G. Harston)(JGH-3)[various Start]
Harston PD Library – Archive Utilities (19xx)(J.G. Harston)(JGH-16)[various Start]
Harston PD Library – Utilities (19xx)(J.G. Harston)(JGH-9)[various Start]
Harston PD Library – Gobbler And Life (19xx)(J.G. Harston)(JGH-23)[various Start]
Harston PD Library – DOS Utilities (19xx)(J.G. Harston)(JGH-15)[INTRO Start]