1.
|
Boston : Northeastern, 2013.
|
2.
|
Newbury Park, California : Sage Publications, [1992] ©1992
|
3.
|
New York : Springer Pub. Co., c1996.
HQ809.3.U5 D63 1996 |
Map It |
|
4.
|
New York : Springer Pub. Co., c1996.
|
5.
|
Thousand Oaks, Calif. : Sage Publications, c2008.
|
6.
|
New York : Routledge, 2013.
|
7.
|
Thousand Oaks : Sage Publications, 2012.
HV6250.4.W65 C653 2012 |
Map It |
|
8.
|
Thousand Oaks, Calif. : Sage Publications, c2001.
HV6250.4.W65 S68 2001 |
Map It |
|