# The effect on mail survey response rates of covering letters and questionnaire cover design

> 2003 doctoral thesis by Philip John Gendall at Massey University

**Wikidata**: [Q112262462](https://www.wikidata.org/wiki/Q112262462)  
**Source**: https://4ort.xyz/entity/the-effect-on-mail-survey-response-rates-of-covering-letters-and-questionnaire-cover-design


## References

1. [Source](http://hdl.handle.net/10179/1772)