مجموعة: الركن الأكاديمي

By: Radio Shack

By: Kenneth Wybar

By: L. G. Alexander

By: C. E. Eckersley, J. M. Eckersley

By: H.a. Harper, V.w. Rodwell, P.a. Mayes

By: R. E. Burns, A. E. Burns

By: Peter J. Schraeder

By: Bernard P. Herber

By: Itv Books, Arrow

By: Walter Wangerin Jr.

By: Kingfisher

By: Robert D. Blevins

By: Martin Bates, Tony Dudley-evans

By: Gregory Orfalea

By: Nigel Grimshaw

By: Colin Ogilvie

By: Katsuhiko Ogata

By: Martin Bates, Tony Dudley-evans

By: E. Walker, S. Elsworth

By: L. W. J. Owler, J. L. Brown

By: E. V. M. Knight

By: L. Harwood Clarke, F. G. J. Norton

By: Oscar Wilde

By: Tracy L. Storer

By: J. Coulson, C. T. Carr, Lucy Hutchinson, Dorothy Eagle, Joyce Hawkins

By: Terry Jennings

By: James C. Van Horne, John M. Wachowicz, Jr.

By: Alan Gilchrist

By: The American Radio Relay League

By: Serway, Beichner

By: Dr. Mohammed El-matary

By: Sandra Silberstein, Barbara K. Dobson, Mark A. Clarke

By: Jean-paul Sartre