Letters on the Evidences, Doctrines, and Duties, of the Christian Religion [Addressed to a Friend Gregory, Olinthus Heftet / 2013 / Engelsk
Treatise of Mechanics: Theoretical, Practical, and Descriptive Gregory, Olinthus Heftet / 2018 / Engelsk
Lesson, Astronomical and Philosophical, for the Amusement and Instruction of British Youth; Being an Attempt to Explain and Account for the Most Usual Appearances in Nature in a Familiar Manner, From Established Principles, the Whole Interspersed Gregory, Olinthus Heftet / 2012 / Engelsk
Hints, Theoritical, Elucidatory, and Practical for the Use of Teachers of Elementary Mathematics Gregory, Olinthus Heftet / 2009 / Engelsk
Hints, Theoritical, Elucidatory, and Practical for the Use of Teachers of Elementary Mathematics Gregory, Olinthus Innbundet / 2009 / Engelsk
Memoirs and Private Correspondence of the Rev. Robert Hall, of Bristol, England Gregory, Olinthus Heftet / 2020 / Engelsk
Letters to a Friend : on the Evidences, Doctrines, and Duties of the Christian Religion Gregory, Olinthus Heftet / 2012 / Engelsk
Treatise of Mechanics : Theoretical, Practical, and Descriptive Gregory, Olinthus Heftet / 2013 / Engelsk
Treatise of Mechanics, Theoretical, Practical, and Descriptive, Volume 2 Gregory, Olinthus Innbundet / 2015 / Engelsk
Letters on the Evidences, Doctrines and Duties of the Christian Religion Addressed to a Friend Gregory, Olinthus Heftet / 2012 / Engelsk
Brief Memoir of the Life of Robert Hall, With Observations on His Character as a Preacher, by J. Foster Gregory, Olinthus Gilbert Heftet / 2018 / Engelsk
Memoirs of the Life, Writings, and Character, Literary, Professional, and Religious, of the Late John Mason Good, M.D. Gregory, Olinthus Gilbert Heftet / 2012 / Engelsk
Course of Mathematics Composed for the Use of the Royal Military Academy. Continued and Amended by Olinthus Gregory. 12th Ed., with Considerable Alterations and Additions by Thomas Stephens Davies Volume 1 Davies, Thomas Stephens Innbundet / 2015 / Engelsk