APA Citation

Sapsford, R. (2007). Survey research (2η έκδ.). California: Sage publications.

Chicago Style Citation

Sapsford, Roger. Survey Research. 2η έκδ. California: Sage publications, 2007.

MLA Citation

Sapsford, Roger. Survey Research. 2η έκδ. California: Sage publications, 2007.

Warning: These citations may not always be 100% accurate.