Jarvik, M E Self-administration of cigarettes with varying tobacco and nicotine content. [electronic resource] - NIDA research monograph Jul 1978 - 236-43 p. digital Publication Type: Journal Article ISSN: 1046-9516 Subjects--Topical Terms: AdultHumansMaleMiddle AgedNicotine--analysisPlants, ToxicSelf AdministrationSmoking--psychologyNicotiana--analysis