Reinius, Gunnar
Ultraforlaget, 1970
Buku Teks
Myrdal, Gunnar, 1898-, author
Gerald Dukworth & Co. Ltd., 1957
Buku Teks
Twentieth Century Fund, 1968
Buku Teks
Eliasson, Gunnar
Swedish Industrial Publications , 1976
Buku Teks
Wright, Richard
World Pub. Co., 1956
Buku Teks