Edited by Arthur C. Beck, Jr., Ellis D. Hillmar
Reading, Massachusetts Addicon-Wesley Publishing , 1972
Buku Teks
Bennis, Warren G., author
Addison-Wesley, [Date of publication not identified]
Buku Teks
Nadler, David A
Addison-Wesley, 1977
Buku Teks
edited by Huxley Madeheim, Edward Mark Mazze and Charles S. Stein
Holt, Rinehart and Winston, 1963
Buku Teks
Blake, Robert R., author
Gulf, 1974
Buku Teks