The writing of English; by P. J. Hartog ... with the assistance of Mrs. Amy H. Langdon.Philip Joseph Hartog1907
Freire JE, De Potter P, Brady LW, Longton WA: Brachytherapy in primary ocular tumors. Semin Surg Oncol 1997; 13:167-176.Freire · Seminars in Surgical Oncology1997PDF9 KB
Some Evidency for an International Managerial Culture. James E. Everett, Bruce W. Stening and Peter A. Longton, Faculty, University of Western Australia. Abstract from Journal of Mangement Studies, April 1982, p. 153The International Executive1982PDF123 KB
Polar Desert Plants - Biology of Polar Bryophytes and Lichens. R. E. Longton 1988. Cambridge, Cambridge University Press (Studies in Polar Research). 391 p, illustrated, hard cover. ISBN 0-521-25015-3. £55.00, US$95.00.Stonehouse · Polar Record1989PDF261 KB
