Bibliography of Riddell, Robert H., by subject:

•	Regional planning -- Developing countries (2)
•	Gastrointestinal system -- Diseases (2)
•	Rural development -- Developing countries (2)
•	Economic development -- Environmental aspects (2)
•	Environmental policy (2)
•	Gastrointestinal Diseases -- pathology (2)
•	Burns, Robert,1759-1796 -- Correspondence (1)
•	Scotland -- Poetry (1)
•	Poisoning -- pathology (1)
•	Manuscripts, Scottish -- Facsimiles (1)
•	Pharmaceutical Preparations -- adverse effects (1)
•	Poets, Scottish -- 18th century -- Correspondence (1)
•	Digestive organs -- Cancer (1)
•	Gastrointestinal system -- Cancer (1)
•	Gastrointestinal Neoplasms (1)
•	Economic development (1)
•	Alimentary canal -- Cancer (1)
•	Economic policy (1)
•	Burns, Robert,1759-1796 -- Manuscripts -- Facsimiles (1)