found: Helpman, E. Market structure and foreign trade, c1985:CIP t.p. (Paul R. Krugman)
found: Adjustment in the world economy, 1987:t.p. (Paul Krugman) p. 2 of cover (Prof. of Economics, MIT)
found: Graham, E.M. Foreign direct investment in the U.S., 1989:CIP t.p. (Paul R. Krugman) data sht. (b. 2-28-53)
found: Krugman, Paul R. Competitiveness, 1994:t.p. (P. Krugman)
found: The great unraveling, 2003:t.p. (Paul Krugman)
found: Fundamentos de economia, 2008:t.p. (Paul Krugman)
found: Xiao tiao jing ji xue de hui gui he 2008 nian jing ji wei ji, 2009:title page (保罗·克鲁格蔓 = Baoluo Kelugeman [chi rom.])
found: Macroeconomics, 2007:t.p. (Paul Krugman, Princeton University)
found: El internacionalismo moderno, 2005:title page (Paul Krugman) page 4 of cover (Estudio en la Universidad de Yale y se doctoro por el MIT, donde ocupó la catedra Flord de Economía. Actualmente enseña en la Universidad de Princeton. Ha sido tambien asesor del Banco Mundial)
found: NTA, viewed July 2, 2020( Paul Robin Krugman)
found: Economics, c2021:t.p. (Paul Krugman)
