APA

Conference of the University-National Bureau Committee for Economic Research N. Y. 2. a. 1., Vernon R., National Bureau of Economic Research (Nueva York) & Universities - National Bureau Committee for Economic Research. (1970). The technology factor in international trade. New York: Columbia University.

Chicago

Conference of the University-National Bureau Committee for Economic Research New York 20 abril 1968, Vernon Raymond, National Bureau of Economic Research (Nueva York) and Universities - National Bureau Committee for Economic Research. 1970. The technology factor in international trade. New York: Columbia University.

Harvard

Conference of the University-National Bureau Committee for Economic Research N. Y. 2. a. 1., Vernon R., National Bureau of Economic Research (Nueva York) and Universities - National Bureau Committee for Economic Research. (1970). The technology factor in international trade. New York: Columbia University.

MLA

Conference of the University-National Bureau Committee for Economic Research New York 20 abril 1968, Vernon Raymond, National Bureau of Economic Research (Nueva York) and Universities - National Bureau Committee for Economic Research. The technology factor in international trade. New York: Columbia University. 1970.