P. Alois Gatterer

P. Angelo Secchi, S J., 1818-1878

P. B. Molesworth's discovery of the great South Tropical Disturbance on Jupiter, 1901

P. Bok died 1975 November 19.

P. D. Cameron died 1971 July 19.

P. D. Stern (1913 - 31 January 1991).

P. Florides, B. Nolan, A. Ottewil (eds): General relativity and gravitation. Proceedings of GR17

P. Hells Reise nach Wardoe, u. seine Beobachtung des Venus-Durchganges im J. 1769 aus den aufgefundenen Tagebücheru geschöpft, und mit Erläuterungen begleitet von C. L. Littrow, Assisenten der K. K. Sternwarte

P. I. Bakulin, É. V. Kononovich and V. I. Moroz. A Course in General Astronomy.

P. I. V. O. I. N. E. Ground Test Facility for Ion Thruster Testing

P. J. Treanor, 1920 March 15 - 1978 February 18.

P. Jaranowski, A. Królak: Analysis of Gravitational Wave Data. Cambridge University Press, 2009, 270p., GBP75.00, USD129.00, ISBN-13: 9780521864596

P. Johann Stein

P. M. S. Blackett, 1897 November 18 - 1974 July 13.

P. Martin, received the Gold Medal of the Royal Astronomical Society of Canada.

P. Ruiz-Lapuente, R.; Canal, J.; and Isern (eds.). Thermonuclear Supernovae

P. Tardi died 1972 August 5.

P. W. Bridgman contributions to the foundations of shock compression of condensed matter

P. W. Gast died 1973 May 16.

P. W. Gast, 1930 - 1973.