Gaya APA
Osullivan, Elizabethann. (1995).
Researct methods : for public administrators (2an ed).
USA:
Longan.
Gaya Chicago
Osullivan, Elizabethann.
Researct methods : for public administrators.
2an ed
USA:
Longan,
1995.
Text.
Gaya MLA
Osullivan, Elizabethann.
Researct methods : for public administrators.
2an ed
USA:
Longan,
1995.
Text.
Gaya Turabian
Osullivan, Elizabethann.
Researct methods : for public administrators.
2an ed
USA:
Longan,
1995.
Print.