Cita APA (7th ed.)
ebrary, Inc, & Uhler, R. S. (1991). Canada-United States trade in forest products. UBC Press.
Cita Chicago (17th ed.)
ebrary, Inc, i Russell S. Uhler. Canada-United States Trade in Forest Products. Vancouver: UBC Press, 1991.
Cita MLA (9th ed.)
ebrary, Inc, i Russell S. Uhler. Canada-United States Trade in Forest Products. UBC Press, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.