Gaya APA
NICHOLS, Paul. (1995).
Social survey methods: a fieldgide for development workers .
Oxford:
Oxford University.
Gaya Chicago
NICHOLS, Paul.
Social survey methods: a fieldgide for development workers.
Oxford:
Oxford University,
1995.
Text.
Gaya MLA
NICHOLS, Paul.
Social survey methods: a fieldgide for development workers.
Oxford:
Oxford University,
1995.
Text.
Gaya Turabian
NICHOLS, Paul.
Social survey methods: a fieldgide for development workers.
Oxford:
Oxford University,
1995.
Print.