Other books
Dr Sam Johnson, Detector (1946)
The Detections of Dr Sam Johnson (1960)
The Return of Dr Sam Johnson, Detector (1985)
The Exploits of Dr Sam Johnson, Detector (1987)
The Detections of Dr Sam Johnson (1960)
The Return of Dr Sam Johnson, Detector (1985)
The Exploits of Dr Sam Johnson, Detector (1987)
