Gaya APA
Williamson, David L.. (1982).
Group power : how to develop, lead, and help group achieve goals .
Englewood Cliffs, NJ:
Prentice Hall.
Gaya Chicago
Williamson, David L..
Group power : how to develop, lead, and help group achieve goals.
Englewood Cliffs, NJ:
Prentice Hall,
1982.
Text.
Gaya MLA
Williamson, David L..
Group power : how to develop, lead, and help group achieve goals.
Englewood Cliffs, NJ:
Prentice Hall,
1982.
Text.
Gaya Turabian
Williamson, David L..
Group power : how to develop, lead, and help group achieve goals.
Englewood Cliffs, NJ:
Prentice Hall,
1982.
Print.