Philpott, W. J.
Textille Book Service , 1959
Buku Teks
Ross, Michael D.H., author
MacDonald, 1960
Buku Teks
Converse, Paul Dulaney, 1889-
Prentice-Hall, 1948
Buku Teks
The European productivity agency of the organization for European Economi Cooperation, 1956
Buku Teks
Reichmann, W.J.
Oxfrod University Press ., 1962
Buku Teks