By James Wilford Garner

Published by The World Press, 1951

By N.D. Arora

Published by McGraw Hill Education(India) Pvt. Ltd, 2016

By Mazhar-ul-Haque

Published by Bookland, 2009

By Edited by: Rajeev Bhargova & others

Published by Pearson Educational Ltd., 2014

By M. Judd Harmon

Published by National book foundation, 2004

By Hutchinson, Thomas

Published by Oxford University, 1964

By Gerney

Published by Wadsworth Publishing, 1962

By Hans J Morgenthau

Published by Vanguard Pvt. Ltd., 0

By Hans J Morgenthau

Published by Alfred A Knopy, 1985

By Francis M. Carney/Marian D Irish

Published by Wads Wroth Co. San Francisco., 1959