Thomas Keller is the author of Wassersportanlagen und deren Intensive Nutzung (1975), Accounting Worksheets for Use with Intermediate Accounting, Third Edition (1974), Innervation of the Nasal Salt Secreting Glands of the Terrestrial Lizard, Dipsosaurus Dorsalis (1972), Effect of Ageing and Cutting on the Co2 Gas Exchange of Poplar Leaves (1971), Informationslücke des Parlaments (1970).