1) science fiction author
2) Gregory, John, 1607-1646. Works of the reverend and learned Mr. John Gregory
3) Gregory, John, 1724-1773. A father's legacy to his daughters
4) Gregory, John, 1914- Understanding ballet:
5) Gregory, John, 1923- Heroes on your stamps,
6)
7) Gregory, John, 1938 Mar. 2- Constrained optimization in the calculus of variations and optimal control theory
8) Gregory, John, 1810-1881. Centennial proceedings and historical incidents of the early settlers of Northfield, Vt.,
9) John Gregory (Australia) - Senior Lecturer in the Faculty of Art and Design at Monash University.
10) Gregory, John, 1938- The neoplatonists :
